Expand the current collapsed fragment
Collapse the current folding region
Expand all collapsed fragments within the selection, or, if nothing is selected, expand all the collapsed fragments in the current file
Collapse all folding regions within the selection, or, if nothing is selected, collapse all the folding regions in the current file
Fold Selection / Remove region
Collapse the selected fragment and create a custom folding region for it to make it "foldable" / Expand the current fragment and remove the corresponding custom folding region to make the fragment "unfoldable"