greetings, first time poster here. new to the community and to Affinity. I am trying to recreate a graphic with a transparent background like I made with another program but struggling to make it right. I am creating a lock and trying to add a created keyhole I made from grouped shapes. I want the key hole to show up as transparent, not white so that when I save the entire project with a transparent background, the key hole will be transparent as well. Is there a way to do this, or a way to erase the keyhole shaped section of the opaque lock? the attached document is what I am trying to reproduce here so that it is higher resolution than the png file.