Array from outside on both sides

[jodi_sherrell]

I have a dynamic block question that I'm not even sure how to word it. Basically here is what I need:

The plate length will vary in length from 10'-0" to 20'-0". There are anchor studs every 6" on this plate. The studs must be 3" from the both ends. So the slack/atypical dimensions go in the center.

I've added the linear stretches to the plate, but I don't know how to do the array. The only thing that I would know to do is have the array start from the outside and work in towards the center. But then that means I have to have two grips, one for each side.

Is there a way to combine the array so that I only have 1 grip?

I would have attached an example, but I have no idea how this new attachment manager works. So frustrating.