Command line/ command search
Is your feature request related to a problem? Please describe. When I am working with Rhino and Grasshopper, I miss the ability to just search any Revit command that I don't frequently use. Since I don't know the shortcut, it becomes an interface hunt.
Describe the solution you'd like
I would like to invoke a command search with a hotkey, which then opens a command line/ pop-up that searches through all commands as I type.

Describe alternatives you've considered I can search commands in the Keyboard Shortcuts window, but that won't let me execute them, only assign hotkeys.
You can search any command created by any pyRevit extension by using the Search command in the pyRevit Tab.
If you define a keyboard shortcut for this pyRevit command, you will be able to get a similar behavior to what you are describing. Although, this will only search within the commands of any pyRevit extension and not ALL Revit commands.