Postbit Pop-up (like when you click on a users name)

[DevinM]

I dont see a add-on/mod for it but I am trying to find a way to create a pop-up/dropdown....whatever similar to the default popup that comes up when you click on a user name.

I dont want to clutter up the postbit but need something like this for the users of my site. They have multiple items id like to add (link to thier classified ads, blog....etc.)

What might be the simplest way to do this?