When grouping structure grid association lost?

[gnarkill283]

I want to group a column cover and base (both structural column families) together so I can change it in the future throughout the project if it changes size/type. When I do this, I get a warning that the components must be detached from the grid. How can I keep that from happening in case my gridline moves in the future? Thanks

[ToanDN]

Uncheck Moves With Grids Box, but keep constraints to the Grid lines and you can create group no problem.  When grids move, the column/base/cover will move with them.

[barthbradley]

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@gnarkill283 wrote:

I want to group a column cover and base (both structural column families) together so I can change it in the future throughout the project if it changes size/type. When I do this, I get a warning that the components must be detached from the grid. How can I keep that from happening in case my gridline moves in the future? Thanks

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Why would you need to Group it?  Why would you even want to?  I think you'd be hamstringing yourself.  

Maybe the better alternative would be sharing and nesting the families together.  Sounds like one cannot be sized independent of the other, so why not drive the size of both in one family?  Make the Nested Family Parameters Instance type and associate them to Parent Family Parameters.  Or, leave them as Type Parameters and label the Nested Family to a Family Types Parameter in the Parent Family.