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

GoldWave - Selects both left and right channels.  

Google Chrome - Show or hide the Bookmarks bar  

Mozilla Thunderbird - Address book  

Opera - Paste and go in background tab  

Vivaldi - Favorites bar  

Adobe Acrobat 2017 (Windows and Unix) - Read out loud from the current page to the end of the document  

Brackets - Skip and add next match  

CherryTree 0.38.8 - Add the Current to the Bookmarks List  

Joplin - Focus note body  

LibreOffice Writer - Subscript  

Microsoft FrontPage - Preview a Web page in a Web browser.  

Notepad2 - Select to matching brace  

Nuance Power PDF - Create an mp3 file with text content of the document  

PDF-XChange Editor - Add Bookmark  

PSPad - Bookmark List  

QOwnNotes 19.10.10 - Insert block quote  

Scrivener 1.9.9 - Toggle binder  

Adobe Illustrator - Paste in place  

Adobe Illustrator - Hide bounding box  

Adobe Lightroom Classic - Clear Quick Collection  

Canva (Windows) - Anchor text to bottom  

Corel Painter - Brightness/Contrast  

CorelDRAW Graphics Suite 2018 - Color Balance...  

GIMP - Brushes  

Krita 4.2.2 - Subscript  

Nuke - Toggle selected node(s) bookmark on or off  

Paint.NET - Zoom to selection  

PaintShop Pro 2018 - Selection from vector object  

QGIS 3.10 - Show Spatial Bookmarks  

Siemens NX - Invert shown and hidden  

SnagIt 13 - Send backward  

Sweet Home 3D - Align side by side  

Sweet Home 3D - Modify level  

Windows Movie Maker - Nudge clip to the left  

Everything - Organize bookmarks  

Atom (Windows) - native!  

Atom (Windows) - (Source: Fuzzy Finder) fuzzy-finder:toggle-git-status-finder  

AWS Cloud9 IDE (Windows) - Beautify Text  

CoffeeCup Web Editor - Previous bookmark in document  

Delphi - Invoke Browser window  

Git Tower (Windows) - Check out revision  

GitHub Desktop - Compare to branch  

HeidiSQL - Match bracket  

IntelliJ IDEA (Windows, Linux) - Go to type declaration  

JetBrains WebStorm - Go to type declaration  

Microsoft Visual Studio 2017 (All shortcuts) - Build.BuildSolution  

Microsoft Visual Studio 2017 (Most used shortcuts) - Build.BuildSolution  

NetBeans - Go to source  

PyCharm 2018.2 - Navigate to a type declaration of a symbol at caret, the symbol being a variable or a method call.  

Qt Creator - Build all  

RStudio - Build and Reload  

SQLyog - Set Focus On Object Browser Filter  

Toad For Oracle (Windows) - Un-comment block  

Chromebook and Chrome OS - Show or hide the bookmarks bar  

FastMail - Show Bcc  

Gmail - Add bcc recipients  

FileZilla - Manage bookmarks  

Total Commander - Selected directory branch: Show selected files, and all in selected subdirectories  

Xyplorer - Toggle Highlighted Folder: toggle highlighted status of current folder  

Cmus 2.8 - win-page-up  

GOM Player - Speed down  

MediaMonkey - Back 5 seconds  

SMPlayer 19.5.0 - 10 seconds backward  

Windows Media Player 11 - Rewind video  

Comodo IceDragon - Library window (Bookmarks)  

draw.io - Send to back  

Edraw Max 9.4 - Activate the curve tool, used to insert curves  

Evernote for Windows - Bulleted List  

Freemind - Cloud  

Front (macOS) - Add Bcc  

Oracle RightNow - New dashboard  

Outlook 2019 and Outlook 2016 - Open the Address Book  

Outlook 2019 and Outlook 2016 - Open the Address Book  

Tableau - Bigger cell size  

The Bat! - Delete recipient from Address Book  

WavePad - Open Bookmark List  

Alteryx - Add a Browse tool after selected tool(s). If the selected tool has multiple outputs, a browse will be added for each.  

GeoGebra - Export ggbBase64 string to clipboard