Nested Family Associating a formula based parameter

[curban]

I've tried to find a solution in the other posts on this topic but haven't found anything that works. We have a high density storage family that was created by a consultant, so my understanding of the workings of the family is limited. What we are trying to do is calculate the volume of storage provided by the fixture. I have been able to get a formula to work for this, but since this is a nested family, I havent found a way to get this parameter into the project model. The formula is in the nested family, in the parent family it appears as an instance parameter but there is no grey box to associate it with a parameter of the parent family. Both family models are checked as "shared". What am I missing or doing wrong to get these parameters to "push" into the project model?

[ToanDN]

You cannot associate a formula based parameter of a nested family to a parameter of the parent family.  There maybe some workarounds so share the families here and see.

[mhiserZFHXS]

Just recreate the formula in the parent family.

[curban]

Models are attached here. The biggest issue is that i need the "mobile count" parameter in order to have all the variables for the formula. The mobile count parameter is itself a formula though. Maybe there is a different way to count the items, but I don't know of one.

[curban]

The formula needs variables that are themselves created by a formula. I would still need a way to push that variable through to the parent family to get it to work.

[mhiserZFHXS]

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@curban wrote:

The formula needs variables that are themselves created by a formula. I would still need a way to push that variable through to the parent family to get it to work.

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Okay. So shift all of those formulas into the parent. And if those formulas are meant to also directly control parts of the nested family, then remove the formula from the nested family and associate the nested parameters with the new formula-driven parameters in the parent family.