It's sad and also most annoying that Affinity doesn't do this. There are so many things about Affinity that are so efficient and sensible. But this is a serious absence.
We should be able to select anything and easily drag copies of it to the same layer. It is so easy to be confused about which layer it is being pasted to, when all you want is for it to remain in the layer you are working on. This is continually disrupting my work flow.
Lloyd Floyd got a reaction from thomaso in How to mouse drag and duplicate/create a copy/clone a selection of pixel on the same layer? on Affinity Photo