The table lists all the available feats - this can be altered by choosing a Filter in the selection box at the bottom left portion of the window. The Q column indicates if your character qualifies for this feat, and the Selected column indicates how you have the Feat (No, Yes or Virtual). To select a Feat, click on the button in the Selected column for the Feat - this will toggle the value between No/Virtual and Yes and pop up a secondary list of choices as necessary (like bringing up a list of Exotic Weapon proficiencies). The Multi column indicates if this feat can be taken multiple times and the Stack column indicates if this Feat stacks. The PreReq column indicates any Pre Requisites for this Feat. The number of feats remaining to be selected is displayed below the table. This value can be edited to add feats to a character as determined by the DM.