flutters, roles and more

I use the flutter plugin to create panels to create posts with certain field.
I use the Role Scoper plugin to create roles and restrictions by posts, pages, etc.
I use the plugin Role Manager to add capabilities to users so only some users will see the panels of the flutter plugin.

the idea is that every user or group will be able to add\edit a different category.

Now, the problem is –
I’ve created a group of editors that can edit category “X”, and restricted other groups from it. I want that the group will see the panel that can add posts to category “X”, but to do that I need to go user by user and add capabilities..

Is there any solution?
maybe another plugin instead of “flutter” that make the same thing (create posts in exact format with custom fields) but Influenced by the “role scoper”?