Left-click, right-click and drop-down areas...
 

During my experimentation with the default UI, I haven't really been able to figure out how to control the area that you wish to be the left/right click and drop-down areas. So far I've imitated this simply by moving elements to where the UI has them set. For example, on the group windows, it is the portrait area, so I moved the names over to that area to make them the clickable area. Could someone with experience expand on this. I'd like to make the areas for left/right click and drop down available not only to the one area but inclusive of the gauges to make it easier to use as well.