Membership plug-in admin side

Membership plug-in is great. What would be very helpful I feel is the ability to limit which categories a member can POST to.

Right now you can limit which categories they can read, but not which they can post to.

Also a way to limit members to only see their own post in the back end rather than seeing others post as well would be splendid. Essentially blocking the "Posts" tab other than their own post.

Any chance these can be added to the admin side of the plug-in?