Marlin ABM extention

This might be the wrong forum for this problem but I need some help. I use PlatformIO with the Marlin ABM panel, and it works great for the first project, I can run clean the ABM panel and build, and all works well. If I however want to switch to a new project (also Marlin) but on a different motherboard, I cannot find a way to select a new project. The only way I could do this was to delete everything and install it again. Does anyone know what needs to be deleted to be able to select a new project? I have a BTT pro and E3D SKR mini for instance.