switching filament during printing?

update: solved!

I used to be able to pause my prints at a specific height or layer to switch my filament and create "multi color prints". I used a feature in Cura "modify gcode". Now i have a K1 and i have to use creality slicer. But creality slicer doesnt seem to have an option to modify gcode.. (even though its a copy of cura). Or is there? Does anyone know how to pause a print at a specific height automatically? lmk!