The problem I ran into was i could not fill the hole in the images below. I could only grab the purple cage not the edges on the polygon i wanted to fill hole on.
Solution:
I had my sub-d in "standard" mode. To fix select the object and go to surfaces>subdiv surfaces>polygon proxy mode and then try to work with the geometry.
Make sure you check if you are in standard mode or polygon proxy mode before filling a hole.
