Append content at the end of a Content Control

Hello, I want to append / edit content inside an existing content control.
Currently, I’ve been using the ONLYOFFICE Api Documentation - InsertAndReplaceContentControls method for replacing content inside content controls. However, I’m unable to find a way to add content at the end of content controls.
For example:

What I want to happen:

InsertAndReplaceContentControls will completely overwrite the “description” content control. This makes it unsuitable for this task.
What I came up with was to use the MoveCursorToContentControl to position the cursor and the end of the content control and afterwards call AddContentControl.

This works but it seems incredibly hacky. Any suggestions?

Hello @fr3fou
We are checking described scenario. I will update this thread when we have something to share.