The Hotkey for Convert to Code is not working

The Hotkey for Convert to Code is not working

OS
macOS Big Sur 11.3

App
Nimbus Note - offline access Version 6.37.1 (6.37.1)

Bug description
The Hotkey for "Convert to Code" is indicated to be "Command+Option+c" but that combination does nothing.

Request extra functionality
As a programmer that uses this functionality the most. It would be good to also have "Convert To Code" as an option in the pop-up that is displayed when selecting text. Or by typing ``` and ending with ``` as is used in Markdown and Evernote.