Keep element at bottom of group

Is there a way to get an element to stay at the bottom of a group even as the group’s height increases?

The default is for everything to keep its position relative to the top of the group. A floating group can stay pinned to the bottom of the page, but not to another group.

You can achieve that by placing the element beneath (in terms of the y-value) the content element that is expanding.

Do you mean put it outside of the group, and beneath the group on the page (higher y coordinate)? Or underneath the group in a lower layer?

I’m trying to get an element inside a group to stay at the bottom as the group gets longer.