Video tutorial by Ralph Grabowski
BricsCAD allows you to edit its shortcut menus, the ones that are displayed when you click the right-mouse button on the mouse. These are also known as "context menus." No matter the name, they are one of the fastest way to access commands in BricsCAD.
This video (5:19) shows you how to choose the commands you want to have within reach:
To learn all of the ways to customize BricsCAD, purchase Ralph Grabowski's Customizing BricsCAD ebook from https://www.upfrontezine.com/cb8 ($40). Available for the current release V15, and all releases going right back to V8.