Feature request: merge method for a pr stack before being inserted to a merge queue

[Itay-Tsabary-Starkware]

Hey,
If I understand correctly, the current behavior when using a merge queue is to squash all the mergble prs in the stack into a single pr, and send it to the merge queue. This is not configurable afaiu.
I'd like to enter prs separately into the queue.
Thanks