What is Ctrl + ↑   Shift + F4 keyboard shortcut for?

Opera - Minimize all tabs  

Adobe Acrobat 2017 (Windows and Unix) - Close the pane that lists the tasks of an Action  

Adobe Acrobat 2017 (Mac) - Close the pane that lists the tasks of an Action  

Enterprise Architect 14 - Autohide the current window.  

ACDSee - Closes all images  

Spyder 4.1.5 - Close pane  

Roblox Studio - Show physics data  

NetBeans - Close all windows  

Code::Blocks 20.03 - Close all files  

SAP ABAP - Close all  

Code::Blocks 17.12 - Close all files  

GoLand (Windows) - Close active window  

ReSharper 2021.3 (Visual Studio scheme) - Close recent tool window  

IBM COBOL Editor - Close All  

SmartGit 19 - Hide view  

Xyplorer - Reset Tree: rebuilds the whole folder tree and then carries you back to the location where you were before, while closing all other open branches  

PeaZip - Browse root  

PeaZip - Go to computer’s or archive’s root  

Corel Photo-Paint 2021 - Hide window  

Microsoft Flight Simulator 2020 - Set Mixture Rich  

LibreOffice Calc - Shows or Hides the Database explorer  

Excel for the web - Repeat Find, upward  

MindManager 21 - Close current map  

Oxygen Light - Remove from selection  

Altium Designer - Move to the previous message (up) in the Messages panel and cross-probe to the object responsible for the message in the associated document (where supported)  

Sparx Systems Enterprise Architect 16.1 - Put the currently selected docked window into Auto-Hide mode  

CircuitStudio - Cross probe previous message