Extensions in SSMS 21

I have just installed SSMS in Windows 11. There is an extension I have used in previous version to run single statements. It’s called SSMSExecutor (https://github.com/devvcat/ssms-executor) . Since the extension appears to have been largely put to rest, this extension needs to be installed manually, though I have written an installer to simplify this. In versions before 21, I can put the extension in a directory such as: C:\Program Files (x86)\Microsoft SQL Server Management Studio 20\Common7\IDE\Extensions\ depending on the version. I have tried installing the extension in the following location for SSMS 21: C:\Program Files\Microsoft SQL Server Management Studio 21\Release\Common7\IDE\Extensions\ The extension appears after a restart, but it’s greyed out and doesn’t work. Is there something else I can do to get this going?