Changing Toolbar options from the server side

Hi,

Does anyone have some sample code of either one of these two things.

1. Disallowing toolbar buttons from the server side. I assume this would use something like the .config,, or perhaps hitting different customconfig.js files - but who knows.

2. Swapping out different toolbarsets from the server side.
I am able to do this second one only if I create a plug-in of each type of toolbar I want to switch between.
That approach is starting to become unwieldy and I am hoping for something a bit simpler.

Thanks,

jima