v8.6.0 r7 g9d95ce35

I can get the dynamic centering work vertical, but not horizontal. Been trying random icon sortings and layout directions w/shrink group on. Nothing works.

https://gfycat.com/needybarechimpanzee

Notice how it centers the group in the middle, vertical wise, but won't center it horizontal wise.

Update: It works, just not when the row count is greater than 1.

Your anchor points (in the Position settings) are both on the left, so your group will always align to the left.

Change the Group Point to center.

Ah shit you're right. I always assumed that that anchor point diagram was for X/Y positioning in regard to the area of the screen...or something...