Maybe while setting up, the boxes where you can place things could all be visible, and the appliances could all be firing. The way I kept accidentally switching was I would click to see the preview of where the appliance was firing, and then switching it by accident.
Ah I see. It does show a different icon when you have something selected, but maybe I can show an indicator somewhere else too. Showing all the attack patterns and placement points isn't something I can do without adding a ridiculous amount of extra objects to the scene.
