Do you want to request a feature or report a bug?
A Bug.
What is the current behaviour?
The menu key in the keyboard (en-US layout) does no open context menu.

If the current behaviour is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem.
opensource.open-source I'm forced to use mouse right click.What is the expected behaviour?
The menu key opens the context menu.
Which versions of DesktopEditors, and which OS are affected by this issue? Did this work in previous versions of DesktopEditors?
Hello, @joe733.
I can confirm - this is bug, know issue 45692 in our private issue tracker.
Problem reproduces in Document Server.
This bug fixed (https://github.com/ONLYOFFICE/sdkjs/commit/60041158f17ebef2733e0e533e062f62a9174a06) and we hope will be released in future major release.
Moved this issue to DocumentServer, since problem actual there and it's our base product
Thanks for the response and fix.
DocumentServer v6.0.0 and DesktopEditors v6.0.0 are released.
This issue should be fixed.
Feel free to comment or create another if got any troubles.