VMB4RY 4-channel relay module - direct pushbutton control


I am using several VMB4RY 4-channel relay modules in my VELBUS system set-up. In the velbuslink software, when adding commands/buttons to a channel, you are able to select the direct pushbutton controls of one of the other VMB4RY modules in the network.
Is it possible to command one VMB4RY from a direct pushbutton control of another VMB4RY module?
Is it also possible to add a motion detector to a direct pushbutton control entrance?