Make this filterable by who is teamed/not teamed.
When I use this, I truly don't want to see folks that are already teamed - I'm reaching out with individual tells to folks who I'm seeing if they want to join what I'm forming (amazing the number of folks who don't read or subscribe to LFG). So folks that are greyed out as already teamed are noise to me - make them go away (optionally) please.
Also, align the "Level" drop down ranges to start on values which align with TFs please. There's not a single TF in the game which has a lowest level of 21, 31, 41...but tons which are 20, 25, 30, 35...aligning these levels to the TF ranges would help tremendously.