Currently with using insertables their codes is inserted at left of the cursor or selected text. Selection thus canceled.
See example
and current result (highlighted)
Proposal: when insertion to replace selected text by a insertable code. Target results may be look as:
This would more user-friendly behavior.
Also reported on https://translatewiki.net/wiki/Thread:Support/Editing_in_the_AJAX_tool_-_using_klick_point_in_the_lower_left_edge.