diff --git a/src/dts/svgld.d.ts b/src/dts/svgld.d.ts
index 95ba2ed..005216b 100644
--- a/src/dts/svgld.d.ts
+++ b/src/dts/svgld.d.ts
@@ -1,106 +1,73 @@
 declare namespace SVGLD {
-export interface IMargin {
-    left?: number;
-    bottom?: number;
-    top?: number;
-    right?: number;
+/**
+ * Add method when creating a container
+ * - Append will append to the last children in list
+ * - Insert will always place it at the begining
+ * - Replace will remove the selected container and insert a new one
+ * (default: Append)
+ */
+export enum AddMethod {
+    Append = 0,
+    Insert = 1,
+    Replace = 2,
+    ReplaceParent = 3
 }
 
-export interface IPoint {
-    x: number;
-    y: number;
+export enum AppState {
+    MainMenu = 0,
+    Loading = 1,
+    Loaded = 2
 }
 
+export enum MessageType {
+    Normal = 0,
+    Success = 1,
+    Warning = 2,
+    Error = 3
+}
 
+export enum Orientation {
+    Horizontal = 0,
+    Vertical = 1
+}
+
+export enum Position {
+    Left = 0,
+    Down = 1,
+    Up = 2,
+    Right = 3
+}
+
+export enum PositionReference {
+    TopLeft = 0,
+    TopCenter = 1,
+    TopRight = 2,
+    CenterLeft = 3,
+    CenterCenter = 4,
+    CenterRight = 5,
+    BottomLeft = 6,
+    BottomCenter = 7,
+    BottomRight = 8
+}
 
 /**
- * Model of available symbol to configure the application */
-export interface IAvailableSymbol {
-    Name: string;
-    Image: IImage;
-    Width?: number;
-    Height?: number;
-    PositionReference?: PositionReference;
-}
-
-export interface IAPIConfiguration {
-    apiFetchUrl?: string;
-    apiSetContainerListUrl?: string;
-    apiGetFeedbackUrl?: string;
-}
-
-
-export interface ISymbolModel {
-    /** Identifier */
-    id: string;
-    /** Type */
-    type: string;
-    /** Configuration of the symbol */
-    config: IAvailableSymbol;
-    /** Horizontal offset */
-    x: number;
-    /** Width */
-    width: number;
-    /** Height */
-    height: number;
-    /** List of linked container id */
-    linkedContainers: Set<string>;
-}
-
-
-export interface IPattern {
+ * Describe the type of the property.
+ * Used for the assignation in the OnPropertyChange function
+ * See ContainerOperations.ts's OnPropertyChange
+ */
+export enum PropertyType {
     /**
-     * Unique id for the pattern
+     * Simple property: is not inside any object: id, x, width... (default)
      */
-    id: string;
+    Simple = 0,
     /**
-     * Text to display in the sidebar
+     * Style property: is inside the style object: stroke, fillOpacity...
      */
-    text: string;
+    Style = 1,
     /**
-     * IAvailableContainer id used to wrap the children.
+     * Margin property: is inside the margin property: left, bottom, top, right...
      */
-    wrapper: string;
-    /**
-     * List of ids of Pattern or IAvailableContainer
-     * If a IAvailableContainer and a Pattern have the same id,
-     * IAvailableContainer will be prioritized
-     */
-    children: string[];
-}
-export type ContainerOrPattern = IAvailableContainer | IPattern;
-export function GetPattern(id: string, configs: Map<string, IAvailableContainer>, patterns: Map<string, IPattern>): ContainerOrPattern | undefined;
-export function IsPattern(id: string, configs: Map<string, IAvailableContainer>, patterns: Map<string, IPattern>): boolean;
-
-
-
-export interface IHistoryState {
-    /** Last editor action */
-    lastAction: string;
-    /** Reference to the main container */
-    mainContainer: string;
-    containers: Map<string, IContainerModel>;
-    /** Id of the selected container */
-    selectedContainerId: string;
-    /** Counter of type of container. Used for ids. */
-    typeCounters: Record<string, number>;
-    /** List of symbols */
-    symbols: Map<string, ISymbolModel>;
-    /** Selected symbols id */
-    selectedSymbolId: string;
-}
-
-
-export interface IGetFeedbackRequest {
-    /** Current application state */
-    ApplicationState: IHistoryState;
-}
-
-
-export interface IInputGroup {
-    key: string;
-    text: React.ReactNode;
-    value: string;
+    Margin = 2
 }
 
 
@@ -114,176 +81,13 @@ export interface IAction {
     AddingBehavior: AddMethod;
 }
 
-
-
-export interface ISetContainerListResponse {
-    Containers: IAvailableContainer[];
-    AddingBehavior?: AddMethod;
+export interface IAPIConfiguration {
+    apiFetchUrl?: string;
+    apiSetContainerListUrl?: string;
+    apiGetFeedbackUrl?: string;
 }
 
 
-export interface IContainerModel {
-    children: string[];
-    properties: IContainerProperties;
-    userData: Record<string, string | number>;
-}
-/**
- * Macro for creating the interface
- * Do not add methods since they will be lost during serialization
- */
-export class ContainerModel implements IContainerModel {
-    children: string[];
-    properties: IContainerProperties;
-    userData: Record<string, string | number>;
-    constructor(properties: IContainerProperties, children?: string[], userData?: {});
-}
-
-/**
- * A SizePointer is a pointer in a 1 dimensional array of width/space
- * x being the address where the pointer is pointing
- * width being the overall (un)allocated space affected to the address
- */
-export interface ISizePointer {
-    x: number;
-    width: number;
-}
-
-
-export interface IGetFeedbackResponse {
-    messages: IMessage[];
-}
-
-
-
-
-
-
-/** Model of configuration for the application to configure it */
-export interface IConfiguration {
-    AvailableContainers: IAvailableContainer[];
-    AvailableSymbols: IAvailableSymbol[];
-    Categories: ICategory[];
-    Patterns: IPattern[];
-    MainContainer: IAvailableContainer;
-    APIConfiguration?: IAPIConfiguration;
-}
-
-
-
-
-export interface ISetContainerListRequest {
-    /** Name of the action declared in the API */
-    Action: IAction;
-    /** Selected container */
-    Container: IContainerModel;
-    /** The previous sibling container */
-    PreviousContainer: IContainerModel | undefined;
-    /** The next sibling container */
-    NextContainer: IContainerModel | undefined;
-    /** Current application state */
-    ApplicationState: IHistoryState;
-}
-
-
-
-
-
-
-/**
- * Properties of a container
- */
-export interface IContainerProperties {
-    /** id of the container */
-    id: string;
-    /** type matching the configuration on construction */
-    type: string;
-    /** id of the parent container (null when there is no parent) */
-    parentId: string;
-    /** id of the linked symbol ('' when there is no parent) */
-    linkedSymbolId: string;
-    /** Text displayed in the container */
-    displayedText: string;
-    /** orientation */
-    orientation: Orientation;
-    /** horizontal offset */
-    x: number;
-    /** vertical offset */
-    y: number;
-    /** margin */
-    margin: IMargin;
-    /** width */
-    width: number;
-    /** height */
-    height: number;
-    /**
-     * Minimum width (min=1)
-     */
-    minWidth: number;
-    /**
-     * Maximum width
-     */
-    maxWidth: number;
-    /**
-     * Minimum height (min=1)
-     */
-    minHeight: number;
-    /**
-     * Maximum height
-     */
-    maxHeight: number;
-    /** true if anchor, false otherwise */
-    isAnchor: boolean;
-    /** true if flex, false otherwise */
-    isFlex: boolean;
-    /** Horizontal alignment, also determines the visual location of x {Left = 0, Center, Right } */
-    positionReference: PositionReference;
-    /** Hide the children in the treeview */
-    hideChildrenInTreeview: boolean;
-    /** if true, show the dimension of the container */
-    showSelfDimensions: Position[];
-    /** if true show the overall dimensions of its children */
-    showChildrenDimensions: Position[];
-    /**
-     * if true, allows a parent dimension borrower to borrow its x coordinate
-     * as a reference point for a dimension
-     */
-    markPosition: Orientation[];
-    /**
-     * if true, show a dimension from the edge of the container to end
-     * and insert dimensions marks at lift up children (see liftDimensionToBorrower)
-     */
-    showDimensionWithMarks: Position[];
-    /**
-     * Warnings of a container
-     */
-    warning: string;
-    /**
-     * (optional)
-     * Replace a <rect> by a customized "SVG". It is not really an svg but it at least allows
-     * to draw some patterns that can be bind to the properties of the container
-     * Use {prop} to bind a property. Use {{ styleProp }} to use an object.
-     * Example :
-     * ```
-     * `<rect width="{width}" height="{height}" style="{style}"></rect>
-     * <rect  width="{width}" height="{height}" stroke="black" fill-opacity="0"></rect>
-     * <line x1="0" y1="0" x2="{width}" y2="{height}" stroke="black" style='{{ "transform":"scaleY(0.5)"}}'></line>
-     * <line x1="{width}" y1="0" x2="0" y2="{height}" stroke="black" style='{userData.styleLine}'></line>
-     * `
-     * ```
-     */
-    customSVG?: string;
-    /**
-     * (optional)
-     * Style of the <rect>
-     */
-    style?: React.CSSProperties;
-    /**
-     * (optional)
-     * User data that can be used for data storage or custom SVG
-     */
-    userData?: object;
-}
-
 
 
 
@@ -415,13 +219,157 @@ export interface IAvailableContainer {
      * (optional)
      * User data that can be used for data storage or custom SVG
      */
-    UserData?: object;
+    UserData?: IKeyValue[];
 }
 
 
-export interface IMessage {
-    text: string;
-    type: MessageType;
+
+/**
+ * Model of available symbol to configure the application */
+export interface IAvailableSymbol {
+    Name: string;
+    Image: IImage;
+    Width?: number;
+    Height?: number;
+    PositionReference?: PositionReference;
+}
+
+export interface ICategory {
+    Type: string;
+    DisplayedText?: string;
+}
+
+
+
+
+
+
+/** Model of configuration for the application to configure it */
+export interface IConfiguration {
+    AvailableContainers: IAvailableContainer[];
+    AvailableSymbols: IAvailableSymbol[];
+    Categories: ICategory[];
+    Patterns: IPattern[];
+    MainContainer: IAvailableContainer;
+    APIConfiguration?: IAPIConfiguration;
+}
+
+
+export interface IContainerModel {
+    children: string[];
+    properties: IContainerProperties;
+    userData: Record<string, string | number>;
+}
+/**
+ * Macro for creating the interface
+ * Do not add methods since they will be lost during serialization
+ */
+export class ContainerModel implements IContainerModel {
+    children: string[];
+    properties: IContainerProperties;
+    userData: Record<string, string | number>;
+    constructor(properties: IContainerProperties, children?: string[], userData?: {});
+}
+
+
+
+
+
+
+
+/**
+ * Properties of a container
+ */
+export interface IContainerProperties {
+    /** id of the container */
+    id: string;
+    /** type matching the configuration on construction */
+    type: string;
+    /** id of the parent container (null when there is no parent) */
+    parentId: string;
+    /** id of the linked symbol ('' when there is no parent) */
+    linkedSymbolId: string;
+    /** Text displayed in the container */
+    displayedText: string;
+    /** orientation */
+    orientation: Orientation;
+    /** horizontal offset */
+    x: number;
+    /** vertical offset */
+    y: number;
+    /** margin */
+    margin: IMargin;
+    /** width */
+    width: number;
+    /** height */
+    height: number;
+    /**
+     * Minimum width (min=1)
+     */
+    minWidth: number;
+    /**
+     * Maximum width
+     */
+    maxWidth: number;
+    /**
+     * Minimum height (min=1)
+     */
+    minHeight: number;
+    /**
+     * Maximum height
+     */
+    maxHeight: number;
+    /** true if anchor, false otherwise */
+    isAnchor: boolean;
+    /** true if flex, false otherwise */
+    isFlex: boolean;
+    /** Horizontal alignment, also determines the visual location of x {Left = 0, Center, Right } */
+    positionReference: PositionReference;
+    /** Hide the children in the treeview */
+    hideChildrenInTreeview: boolean;
+    /** if true, show the dimension of the container */
+    showSelfDimensions: Position[];
+    /** if true show the overall dimensions of its children */
+    showChildrenDimensions: Position[];
+    /**
+     * if true, allows a parent dimension borrower to borrow its x coordinate
+     * as a reference point for a dimension
+     */
+    markPosition: Orientation[];
+    /**
+     * if true, show a dimension from the edge of the container to end
+     * and insert dimensions marks at lift up children (see liftDimensionToBorrower)
+     */
+    showDimensionWithMarks: Position[];
+    /**
+     * Warnings of a container
+     */
+    warning: string;
+    /**
+     * (optional)
+     * Replace a <rect> by a customized "SVG". It is not really an svg but it at least allows
+     * to draw some patterns that can be bind to the properties of the container
+     * Use {prop} to bind a property. Use {{ styleProp }} to use an object.
+     * Example :
+     * ```
+     * `<rect width="{width}" height="{height}" style="{style}"></rect>
+     * <rect  width="{width}" height="{height}" stroke="black" fill-opacity="0"></rect>
+     * <line x1="0" y1="0" x2="{width}" y2="{height}" stroke="black" style='{{ "transform":"scaleY(0.5)"}}'></line>
+     * <line x1="{width}" y1="0" x2="0" y2="{height}" stroke="black" style='{userData.styleLine}'></line>
+     * `
+     * ```
+     */
+    customSVG?: string;
+    /**
+     * (optional)
+     * Style of the <rect>
+     */
+    style?: React.CSSProperties;
+    /**
+     * (optional)
+     * User data that can be used for data storage or custom SVG
+     */
+    userData?: IKeyValue[];
 }
 
 
@@ -432,9 +380,33 @@ export interface IEditorState {
     configuration: IConfiguration;
 }
 
-export interface ICategory {
-    Type: string;
-    DisplayedText?: string;
+
+export interface IGetFeedbackRequest {
+    /** Current application state */
+    ApplicationState: IHistoryState;
+}
+
+
+export interface IGetFeedbackResponse {
+    messages: IMessage[];
+}
+
+
+
+export interface IHistoryState {
+    /** Last editor action */
+    lastAction: string;
+    /** Reference to the main container */
+    mainContainer: string;
+    containers: Map<string, IContainerModel>;
+    /** Id of the selected container */
+    selectedContainerId: string;
+    /** Counter of type of container. Used for ids. */
+    typeCounters: Record<string, number>;
+    /** List of symbols */
+    symbols: Map<string, ISymbolModel>;
+    /** Selected symbols id */
+    selectedSymbolId: string;
 }
 
 /**
@@ -455,75 +427,116 @@ export interface IImage {
     Svg?: string;
 }
 
-export enum MessageType {
-    Normal = 0,
-    Success = 1,
-    Warning = 2,
-    Error = 3
+
+export interface IInputGroup {
+    key: string;
+    text: React.ReactNode;
+    value: string;
+}
+
+export interface IKeyValue {
+    Key: string;
+    Value: string;
+}
+
+export interface ILanguage {
+    language: string;
+    dictionary: Record<string, string>;
+    languageChange?: (selected: string) => void;
+}
+
+export interface IMargin {
+    left?: number;
+    bottom?: number;
+    top?: number;
+    right?: number;
+}
+
+
+export interface IMessage {
+    text: string;
+    type: MessageType;
+}
+
+
+export interface IPattern {
+    /**
+     * Unique id for the pattern
+     */
+    id: string;
+    /**
+     * Text to display in the sidebar
+     */
+    text: string;
+    /**
+     * IAvailableContainer id used to wrap the children.
+     */
+    wrapper: string;
+    /**
+     * List of ids of Pattern or IAvailableContainer
+     * If a IAvailableContainer and a Pattern have the same id,
+     * IAvailableContainer will be prioritized
+     */
+    children: string[];
+}
+export type ContainerOrPattern = IAvailableContainer | IPattern;
+export function GetPattern(id: string, configs: Map<string, IAvailableContainer>, patterns: Map<string, IPattern>): ContainerOrPattern | undefined;
+export function IsPattern(id: string, configs: Map<string, IAvailableContainer>, patterns: Map<string, IPattern>): boolean;
+
+export interface IPoint {
+    x: number;
+    y: number;
+}
+
+
+
+
+export interface ISetContainerListRequest {
+    /** Name of the action declared in the API */
+    Action: IAction;
+    /** Selected container */
+    Container: IContainerModel;
+    /** The previous sibling container */
+    PreviousContainer: IContainerModel | undefined;
+    /** The next sibling container */
+    NextContainer: IContainerModel | undefined;
+    /** Current application state */
+    ApplicationState: IHistoryState;
+}
+
+
+
+export interface ISetContainerListResponse {
+    Containers: IAvailableContainer[];
+    AddingBehavior?: AddMethod;
 }
 
 /**
- * Add method when creating a container
- * - Append will append to the last children in list
- * - Insert will always place it at the begining
- * - Replace will remove the selected container and insert a new one
- * (default: Append)
+ * A SizePointer is a pointer in a 1 dimensional array of width/space
+ * x being the address where the pointer is pointing
+ * width being the overall (un)allocated space affected to the address
  */
-export enum AddMethod {
-    Append = 0,
-    Insert = 1,
-    Replace = 2,
-    ReplaceParent = 3
+export interface ISizePointer {
+    x: number;
+    width: number;
 }
 
-/**
- * Describe the type of the property.
- * Used for the assignation in the OnPropertyChange function
- * See ContainerOperations.ts's OnPropertyChange
- */
-export enum PropertyType {
-    /**
-     * Simple property: is not inside any object: id, x, width... (default)
-     */
-    Simple = 0,
-    /**
-     * Style property: is inside the style object: stroke, fillOpacity...
-     */
-    Style = 1,
-    /**
-     * Margin property: is inside the margin property: left, bottom, top, right...
-     */
-    Margin = 2
-}
 
-export enum PositionReference {
-    TopLeft = 0,
-    TopCenter = 1,
-    TopRight = 2,
-    CenterLeft = 3,
-    CenterCenter = 4,
-    CenterRight = 5,
-    BottomLeft = 6,
-    BottomCenter = 7,
-    BottomRight = 8
-}
-
-export enum AppState {
-    MainMenu = 0,
-    Loading = 1,
-    Loaded = 2
-}
-
-export enum Orientation {
-    Horizontal = 0,
-    Vertical = 1
-}
-
-export enum Position {
-    Left = 0,
-    Down = 1,
-    Up = 2,
-    Right = 3
+export interface ISymbolModel {
+    /** Identifier */
+    id: string;
+    /** Type */
+    type: string;
+    /** Configuration of the symbol */
+    config: IAvailableSymbol;
+    /** Horizontal offset */
+    x: number;
+    /** Width */
+    width: number;
+    /** Height */
+    height: number;
+    /** List of linked container id */
+    linkedContainers: Set<string>;
 }
 
 }