Currently Room Calculation Points in Families are set to a fixed location, but there are many instances where an object sometimes sits inside the room it's associated with and sometimes sits outside. The current workaround using invisible lines controlled by instance parameters to trick the family into believing its centroid is in a different position is both flakey and ridiculous considering the Room Calculation Point exists.
We need is to be able to apply a dimension and an instance parameter to the Room Calculation Point in the family editor or have the ability to move the Room Calculation Point for an instance within the project. Surely the image below wouldn't be difficult to achieve?