Added SeenThis page block and custom tag (#236)

docs/content_management/block_reference.md

@@ -29,6 +29,7 @@ The following blocks are provided with a clean installation of [[= product_name
 |[Recently added](#recently-added-block)|Displays a list of products that were recently added to PIM. |
 |[RSS](#rss-block)|Loads and displays news from RSS feeds (channels). |
 |[Sales representative](#sales-representative)|Loads and displays company's sales representative.|
+|[SeenThis!](#seenthis-block)|Displays video with exceeded standard video restrictions of 3.5MB.|
 |[Targeting](#targeting-block)|Embeds an Content item based on the [Segment](content_organization/classify_content.md#segments) the user belongs to. |
 |[Text](#text-block)|Enables you to add to the Page a Rich Text block. |
 |[Video](#video-block)|Embeds a video into the Page with standard playback controls. |
@@ -223,6 +224,34 @@ On the **Basic** tab, set values in the following fields:
 
 On the **Design** tab, in the **View** field, select the layout to be used to present a list of products and submit your changes.
 
+## SeenThis! block
+
+Integration with (SeenThis!)[https://seenthis.co/] service. SeenThis! block provides an adaptive streaming technology with no limitations as conventional streaming service. It allows to preserve the best video quality with minimum amount of data transfer.
+
+!!! note
+    This page block is in an opt-in bundle, to use it, install `ibexa/connector-seenthis` bundle first.
+
+On the **Basic** tab, set values in the following fields:
+
+- **Name** – Enter a name for the page block.
+- **Video ID** – Enter the ID of the video to be streamed.
+- **Tracker ID** – Enter the tracking code.
+- **Big play button** – Set to display a large play button.
+- **Autoplay** – Configure whether the video starts automatically.
+- **Muted** – Configure whether the video starts muted.
+- **Play button** – Set the number of products to be displayed.
+- **Mute button** – Set whether the mute button is displayed or not.
+- **Loop** – Set whether to play a video in a loop mode.
+- **Loop count** – Set the number of loop repetitions.
+- **Include audio** – Configure whether to include audio with the video.
+
+On the **Design** tab, in the **View** field, select the layout to be used to present a list of products and submit your changes.
+
+
+!!! note
+
+    SeenThis! technology might be blocked by some ad blocker solutions. If you can't see the block once configured, check the ad blocker configuration.
+
 ## Recently added block
 
 On the **Basic** tab, set values in the following fields:

docs/content_management/create_edit_content_items.md

@@ -115,6 +115,15 @@ add or delete rows and columns in any part of the table, as well as merge and sp
 Your installation can also have custom elements available in the Rich Text field.
 Contact your website administrator about the details of using them.
 
+### SeenThis! streaming
+
+!!! note
+    This custom tag is in an opt-in bundle, to use it, install `ibexa/connector-seenthis` bundle first.
+
+Use SeenThis! tag to enable displaying of video with maximum quality regardless of connection and server integration.
+
+For more information, see [SeenThis! page block](block_reference.md#seenthis-block) documentation.
+
 ### Text formatting
 
 When you select a section of text, you get access to text formatting options such as bold or underline.