Mentioned custom properties for Ibexa Connect

Author: mnocon

docs/ai_actions/extend_ai_actions.md

@@ -105,6 +105,8 @@ The `ActionServiceInterface` service extracts the configuration options from the
 
 The following example adds a new Action Handler connecting to a local AI run using [the llamafile project](https://github.com/Mozilla-Ocho/llamafile) which you can use to execute Text-To-Text Actions, such as the built-in "Refine Text" Action.
 
+When creating a Action Handler for [[= product_name_connect =]], add the new handler identifier to the [`Ibexa AI handler` custom property](install_ai_actions.md#initiate-integration) in [[= product_name_connect =]] user interface.
+
 ### Register a custom Action Handler in the system.
 
 Create a class implementing the [ActionHandlerInterface](/api/php_api/php_api_reference/classes/Ibexa-Contracts-ConnectorAi-Action-ActionHandlerInterface.html) and register it as a service:

docs/ai_actions/install_ai_actions.md

@@ -161,6 +161,22 @@ php bin/console ibexa:connect:init-connect-ai 2 en connect-image-to-text connect
 
     The [`language` attribute](https://developers.make.com/api-documentation/api-reference/templates#templates-1) determines the language in which template details such as module names will be displayed in [[= product_name_connect =]]'s UI.
 
+Then, create the `Ibexa AI handler` custom property in [[= product_name_connect =]] to store the list of available action handlers for this integration.
+You can do it by running the following command:
+
+``` bash
+php bin/console ibexa:connect:init-custom-property-structures <organization-id> <action handler identifiers>
+```
+
+For example:
+
+``` bash
+php bin/console ibexa:connect:init-custom-property-structures 4 connect-image-to-text connect-text-to-text
+```
+
+The `Ibexa AI handler` property attaches to a Scenario to store information about the action handler associated with it.
+When creating a new [[= product_name_connect =]]-based AI action, the back office of [[= product_name =]] shows only the existing Scenarios that work with selected action handler.
+
 ### Customize templates 
 
 Return to the [[= product_name_connect =]] dashboard and modify the **Template for connect...handler** [templates]([[= connect_doc =]]/scenarios/scenario_templates/) by defining the logic needed to process the data.