possible multiple base(hosted) families

[RJK42]

I would like to create a fixtre that is both ceilng and wall mounted. Is there a way to have a fixture created in one family that can switch from a ceiling mount to a wall mount without applying the "new host" button?

Thanks

[L.Maas]

No, you can not. Only the more host friendly would be the face based families. They can be hosted on...faces, if they are ceiling, roofs, walls or other objects. But even there if you want to place the object on a different face you will have to 'pick new host'.