diff --git a/docs/api.js b/docs/api.js
index 49cfa4975..cd220e1bd 100644
--- a/docs/api.js
+++ b/docs/api.js
@@ -20,14 +20,14 @@ async function generateDocs () {
     ['dom_components/index.ts', 'components.md'],
     ['dom_components/model/Component.js', 'component.md'],
     ['panels/index.ts', 'panels.md'],
-    ['style_manager/index.js', 'style_manager.md'],
-    ['style_manager/model/Sector.js', 'sector.md'],
-    ['style_manager/model/Property.js', 'property.md'],
-    ['style_manager/model/PropertyNumber.js', 'property_number.md'],
-    ['style_manager/model/PropertySelect.js', 'property_select.md'],
-    ['style_manager/model/PropertyComposite.js', 'property_composite.md'],
-    ['style_manager/model/PropertyStack.js', 'property_stack.md'],
-    ['style_manager/model/Layer.js', 'layer.md'],
+    // ['style_manager/index.ts', 'style_manager.md'],
+    ['style_manager/model/Sector.ts', 'sector.md'],
+    ['style_manager/model/Property.ts', 'property.md'],
+    ['style_manager/model/PropertyNumber.ts', 'property_number.md'],
+    ['style_manager/model/PropertySelect.ts', 'property_select.md'],
+    ['style_manager/model/PropertyComposite.ts', 'property_composite.md'],
+    ['style_manager/model/PropertyStack.ts', 'property_stack.md'],
+    ['style_manager/model/Layer.ts', 'layer.md'],
     ['storage_manager/index.ts', 'storage_manager.md'],
     ['device_manager/index.ts', 'device_manager.md'],
     ['device_manager/model/Device.ts', 'device.md'],
diff --git a/docs/api/commands.md b/docs/api/commands.md
index ff1388bd7..3acc580ee 100644
--- a/docs/api/commands.md
+++ b/docs/api/commands.md
@@ -95,7 +95,7 @@ Extend the command. The command to extend should be defined as an object
 ### Parameters
 
 *   `id` **[string][11]** Command's ID
-*   `cmd` **CustomCommand**  (optional, default `{}`)
+*   `cmd` **CommandObject**  (optional, default `{}`)
 *   `Object` **[Object][12]** with the new command functions
 
 ### Examples
diff --git a/docs/api/css_composer.md b/docs/api/css_composer.md
index 6e90e31f7..7cb17e68f 100644
--- a/docs/api/css_composer.md
+++ b/docs/api/css_composer.md
@@ -53,7 +53,7 @@ Add/update the CssRule.
 ### Parameters
 
 *   `selectors` **[String][8]** Selector string, eg. `.myclass`
-*   `style` **[Object][10]** Style properties and values
+*   `style` **[Object][10]** Style properties and values (optional, default `{}`)
 *   `opts` **[Object][10]** Additional properties (optional, default `{}`)
 
     *   `opts.atRuleType` **[String][8]** At-rule type, eg. `media` (optional, default `''`)
diff --git a/docs/api/modal_dialog.md b/docs/api/modal_dialog.md
index 954c01945..1f12a17be 100644
--- a/docs/api/modal_dialog.md
+++ b/docs/api/modal_dialog.md
@@ -188,7 +188,7 @@ modal.getContent();
 
 Returns **([string][12] | [HTMLElement][13])** 
 
-[1]: https://github.com/artf/grapesjs/blob/master/src/modal_dialog/config/config.js
+[1]: https://github.com/artf/grapesjs/blob/master/src/modal_dialog/config/config.ts
 
 [2]: #open
 
diff --git a/docs/api/property_stack.md b/docs/api/property_stack.md
index efd4925a7..575112749 100644
--- a/docs/api/property_stack.md
+++ b/docs/api/property_stack.md
@@ -49,7 +49,7 @@ Returns **([Layer] | null)**
 
 Get selected layer.
 
-Returns **([Layer] | null)** 
+Returns **([Layer] | [undefined][7])** 
 
 ### selectLayer
 
@@ -103,8 +103,8 @@ Add new layer to the stack.
 
 #### Parameters
 
-*   `props` **[Object][7]** Custom property values to use in a new layer. (optional, default `{}`)
-*   `opts` **[Object][7]** Options (optional, default `{}`)
+*   `props` **[Object][8]** Custom property values to use in a new layer. (optional, default `{}`)
+*   `opts` **[Object][8]** Options (optional, default `{}`)
 
     *   `opts.at` **[Number][6]?** Position index (by default the layer will be appended at the end).
 
@@ -174,12 +174,12 @@ Get style object from the layer.
 #### Parameters
 
 *   `layer` **[Layer]** 
-*   `opts` **[Object][7]** Options (optional, default `{}`)
+*   `opts` **[Object][8]** Options (optional, default `{}`)
 
     *   `opts.camelCase` **[Boolean][1]?** Return property names in camelCase.
-    *   `opts.number` **[Object][7]?** Limit the result of the number types, eg. `number: { min: -3, max: 3 }`
+    *   `opts.number` **[Object][8]?** Limit the result of the number types, eg. `number: { min: -3, max: 3 }`
 
-Returns **[Object][7]** Style object
+Returns **[Object][8]** Style object
 
 ### getStylePreview
 
@@ -189,9 +189,9 @@ If the property has `preview: false` the returned object will be empty.
 #### Parameters
 
 *   `layer` **[Layer]** 
-*   `opts` **[Object][7]** Options. Same of `getStyleFromLayer` (optional, default `{}`)
+*   `opts` **[Object][8]** Options. Same of `getStyleFromLayer` (optional, default `{}`)
 
-Returns **[Object][7]** Style object
+Returns **[Object][8]** Style object
 
 ### getLayerSeparator
 
@@ -211,4 +211,6 @@ Returns **[RegExp][3]**
 
 [6]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number
 
-[7]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object
+[7]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/undefined
+
+[8]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object
diff --git a/src/style_manager/model/Sector.ts b/src/style_manager/model/Sector.ts
index edc202bb8..b496852f6 100644
--- a/src/style_manager/model/Sector.ts
+++ b/src/style_manager/model/Sector.ts
@@ -39,6 +39,9 @@ export default class Sector extends Model<SectorProperties> {
     };
   }
 
+  /**
+   * @hideconstructor
+   */
   constructor(prp: SectorProperties, opts: { em?: EditorModel } = {}) {
     super(prp);
     const { em } = opts;