Maybe I am just missing the place to do this, but in the old JK2radiant you could adjust textures placed on cylinders and cones. Is this still possible in GTKradiant and where can I find it? The usual surface inspector doesnt seem to do anything. If this is not an option available, is it possible to speak with the developers of GTKradiant to see if it is a work in progress??

Shift+S

That has always been there AFAIK just now you have to use it as meshes are very different from regular brushes.