This shortcut is used by 9 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.
Make the previous tab the active tab
Adobe Acrobat 2017 (Mac)
Move to previous open document tab (when multiple documents are open in same window)
Clip Studio Paint Pro
(macOS) Canvas: Previous canvas
Final Cut Pro X
Go to the previous pane in the inspector or the Color Board
Show Previous Tab
Visual Studio Code (Mac)
Select the previous conversation
iPad Smart Keyboard
Show previous tab