I need to add things on to an item rather than them be different.
For example
Balloons - without helium or add helium
But I would only say 10 packs of balloons, so person a comes along and buys 10 packs uninflated - I would then need them at 0
But it leaves it open for person b to come along and then be able to purchase 10 packs inflated
Is there a way round this?
Without having to constantly edit them every time the other goes? I already have some third party apps but each time I get another app to do something else it can connect with that app etc.