With multiple selection we sometime have cursors lost in the buffer, and sometime they are located out of our view.
In case I have cursors out of my view and to avoid accident, I would like to make a plugin that replace the top and/or bottom line of my buffer with a text informing of the other cursor.
Something like this: ( maybe with a red background )
" ↑ 3 more cursors on the above text"
How could I achieve such a thing ? Do I have to mess with the JSON-RPC api ? Any tips welcome !