Multi-tiled slopes in rule tiles


I’m trying to make a game with multiple slope sizes (Like the platform circled in green), and I’m using a rule tile to do so. The rule tile works perfectly with the single tiled slope (circled in red), but I also want to add the multi tiled slope (circled in blue) to it. Is there a way to do so or a different way to create these sorts of levels without manually placing every tile?