How can I make an overlay move side to side the whole scene, like smoke / fog ?

Welcome to the community! :grin: You’ll need the “loop INFINITE times” command. The basics: &overlay NAME shifts to 100 100 in 1 THEN overlay NAME shifts to 110 100 in 1 loop INFINITE times Make sure you have that &, it’s important, if you put an @ the reader will be stuck forever. Stack as m…