1) Yeah, you can lock and hide channels. If you ever need to unlock/unhide them, you can do that with the channel control window. 2) Do a google search for "maya reverse foot rig". I can't remember the exact steps right now, but if you practice that a couple times, you should be able to adapt it for your rig and give you nice foot roll control. Cheers man but i know how to do both but not sure how to setup the ik on a leg that shape and does the locking of certain rotations effects the use of ik. Not your simple leg with just one joint per knee, ankle and hip is it.