Hasta La Motion!

I have a projection setup for a difficult removal. Its working fine until i reach a frame where i want to animate the roto to cover a different area. When viewing the projection and adjusting the roto moves but does not create a new keyframe, also if i try from its settings they are greyed out.

I tried viewing the roto before it is fed to the project3D node and im able to adjust it then but that doesnt help me out because i cant see what im doing and even then it doesnt work correctly.

Im using Nuke6.2, is this a known bug?

Cheers