I have built two different schematic symbols for connectors, one pointing left as an input, "con1l" and one pointing right as an output, "con1r". Each is a single connection symbol, and a combination of both can be used to represent one connector on a schematic, depending on how the engineer wants to use it.
I'm assuming that these symbols need to have the "hetero" property assigned in order to package correctly because of using two separate symbols to represent one part, but I'm not exactly sure which type to use. I can not assign a "parts" property indicating the number of slots required at the symbol level due to using the same symbols for multiple connector parts.
Do my connector symbols require the "hetero" property and how should that property be shown?