What is < keyboard shortcut for?

Fernbus Simulator - Warning lights on/off  

Windows Calculator - Select Lsh  

Vim - Shift left  

Ardour - Range start to prev region edge  

Lynx 2.8.9 - Go to the previous link in the current column  

MythTV 32 - Starts rewind mode as if stickykeys are selected  

MythTV 32 - Rewind 1 second  

MythTV 32 - Move forward or backward by 10 times the normal jump amount  

MythTV 32 - Move the highlight left by one page  

Mapedit (Blood) - Set angle (0-2047)  

Helix 23.10 - Unindent selection  

PeaZip - (on the folder) Open directory  

Adobe Bridge CC - Decrease rating  

Adobe Bridge CC (Mac) - Decrease rating  

feh Image Viewer - [orient_3, orient_1] In place editing - rotate the images 90 degrees(counter)clockwise.  The rotation is lossless, but may createartifacts in some image corners when used with JPEG images. Rotating in the reverse direction will make them go away.  

Adobe Illustrator - Select color fill mode  

Adobe Photoshop CC - First Brush  

Adobe Photoshop (macOS) - First Brush  

Autodesk SketchBook (Windows) - Previous frame (animation mode)  

Adobe Illustrator (Mac) - Select color fill mode  

Autodesk Maya 2019 - Shrink polygon selection region  

Autodesk Maya 2019 - Graph Upstream  

Autodesk Maya 2019 - Graph Upstream  

LightWave 3D - Zoom out x2  

Rekordbox 6 - Pause slot 10  

REAPER - Time selection: Shift left (by time selection length)  

Logseq - Block content autocomplete  

MuPDF - Skip forth/back 10 pages  

Apple GarageBand - Turn Catch mode on/off  

Guitar Pro 8 (Windows) - Fade in  

Guitar Pro 8 (macOS) - Fade in  

Guitar Pro - Fade in  

Dorico - Crescendo  

Mutt 2.2.10 - Scroll up one line  

PotPlayer 1.7 - x times slower  

GOM Player - 0.5 sec slower  

Celluloid 0.23 - Go backward/forward in the playlist  

SMPlayer 19.5.0 - Play previous  

Jellyfin MPV Shim - Skip episodes  

QLab 4 - Collapse all group cues  

Virtual Key Codes - (Either the angle bracket key or the backslash key on the RT 102-key keyboard) VK_OEM_102 (0xE2)  

PICO-8 (Windows) - Zoom  

Tig - Back to previous view state  

Zimbra Web Client - Action menu  

Google+ - Close menu  

lnav (The Log File Navigator) 0.11.2 - Next/previous search hit (horizontal)  

KiCad 5.0.2 - Select Layer and Add Through Via  

Eplan Platform 2.9 - Activate / deactivate orthogonal function in the horizontal / vertical direction, deactivate enabled orthogonal function  

JMP 15 - Less than  

Mathcad Prime 6.0 - Inequality  

Mathcad Prime 6.0 - Less than  

JMP 15 (macOS) - Less than  

YouTube Studio - Play slower  

Pluralsight - Previous clip  

YouTube - Decrease play speed  

City Car Driving - Left turn signal  

Geo-FS 3.5 - Steer the aircraft (Yaw) (only effective when roll/yaw mixing is disabled)  

Bloons TD Battles - Upgrade the power path 1  

Live for Speed - Less Force (English keyboards)  

Age of Empires IV - Pan camera left – Default binding remapped on non-English keyboards to the key at that location  

Eye of the Beholder - Highlight the spell  

Open Rails 0.6.2 - Dynamik brake decrease  

Cataclysm: Dark Days Ahead (PC) - Page up  

Cataclysm: Dark Days Ahead (PC) - Go up  

Cataclysm: Dark Days Ahead (PC) - Move to previous category tab