How can I set the same key to toggle the folding of the current block in Visual Studio?

I need to set on one single key (F1 specifically) both the collapse and the expand of the current block, in VS Pro 2019.

I thought I did it in the past, but I seem not to find it again anymore.

Simply binding both Edit.CollapseCurrentRegion and Edit.ExpandCurrentRegion doesn't work: one overwrites the other.

Ideally there should be a Edit.ToggleCurrentRegion but I couldn't find it.

Solution

Edit.ToggleOutliningExpansion

I think this should toggle expansion and collapsing of current region. By default it's Ctrl + M + M