How do I cange the cycle settings for Multiple objects - Blender? I need two renders and for the second one I do not need the gloss for multiple objects on the floor. It would be difficult to deselect the gloss property for every object for 50 different objects. Is there a way to apply cycle property change from one active object to all selected?

Also is there an easier way to extract just the reflections from a glossy surface, currently I am using different renders and the difference matte in the compositor.

I'm new to blender.
A lot of options in blender could be copied from active to other selected with Copy to Selected operator from context menu, including cycles_visibility.glossy



You can extract the reflections from some surfaces in Compositor using Object, Material ID or awesome Cryptomate feature and so on: