Are you looking for the Else-If piston?
Simple piston: IF (conditions) THEN (actions) ELSE (actions)
Else-If piston: IF (conditions) THEN (actions) ELSE IF (conditions) ELSE (actions)
Has anyone noticed you can take a snapshot of the piston in the dashboard? It opens an image in a new tab, you can then save that to your Photos and post it here 
No more multiple screen snapshots…