What is Ctrl + Alt + ↑  Shift + L keyboard shortcut for?

Moonlight Stream - Toggle locking the mouse pointer to the video area (requires "Optimize mouse for remote desktop instead of games" checkbox enabled)  

Adobe After Effects 2021 - New light  

DigiKam 8.1.0 - Export to local storage…  

Moho 13 - Menus / Window / Docking / Light  

Adobe Photoshop CC - Luminance Targeted Adjustment tool  

Adobe Lightroom Classic - Select Targeted Adjustment tool to apply a Luminance adjustment  

HitFilm - Set selected mask point to linear  

Harmony 20 - Unlock all  

Harmony 20 - Unlock all  

Affinity Photo - Unlock All  

OpenToonz 1.4 - Lock all  

SQL Server Management Studio (SSMS) - Display the estimated execution plan  

SmartGit 19 - Investigate  

Adobe InDesign 2020 (Windows) - Pages: Override All Master Page Items  

Excel for the web - Turn on filtering for the selected cell  

Excel for the web - Turn on filtering for the selected cell  

Finale 26 - Relink in all parts/relink to score  

Bitwig Studio 4.2 - Make Legato  

HitFilm Pro 2021.3 - Set Mask Point(s) to Linear  

Leapfrog Geo 2023.2 - Select all lines  

Vectorworks 2020 - Label Legend Manager