DynamicOverflow - set overflow on start or end #1134

Is your feature request related to a problem? Please describe.

I used the widget DynamicOverflow, and it's great but I would really like to have to widget on the left and to have the overflow maybe from the start of the list.

There is what I have:

And what I want:

(I want to keep the end of the path and hide the beggining, a little like Windows Explorer. And having the overflow widget on the left).

Describe the solution you'd like
Having a parameter like

overflowAlignment: MainAxisAlignment.start

(It's different from overflowWidgetAlignment).