XF 1.5 Editing @Mention Pop Up?

[Satix]

Where can I edit the menu that pops up when you try to mention a user? I've tried using inspect element and breaking on the subtree, which worked for the draft button, but I can't inspect this menu before it disappears.

Here's the menu I'm talking about:

Thanks!

https://lakevalor.net

 

[grisha2217]

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