This shortcut is used by 70 programs in our database.
There isn't any generic description for this shortcut.
What this shortcut does in different programs?
All programs using this shortcut, by category.
PyCharm 2018.2 - 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"