Is there a way to assign design rules to an unconnected standalone pin? For example, there is a relay with an unconnected pin that may or may not be switched to AC Hot/Live during the circuit operation. As such, I would like to enforce the relevant creepage and clearance distances to that pin. At the moment, I can only see a way of assigning rules to Nets however a single pin net automatically gets deleted and the rules are not enforced. I have an inelegant solution of keepouts on the pins but would like to use the proper rule system.