As the picture lists, it adds a mini menu which links to a new page with user options within your Admin CP. Basically allows you to send PMs, read PMs, edit your profile, post profile comments (with certain hack added), view and use arcade etc as framed within the Admin CP. It's like this one I made, except with more options and on a separate page so it doesn't overwhelm the user:
https://vborg.vbsupport.ru/showthread.php?t=150794
While I'm at it, I need to add Mod options tonight to this...