That is the old ACE editor. It doesn't have the features of the MONACO editor.
If you have access to the settings.js file, update it as in this post: Getting the monaco editor to work in NR 2.x - #10 by Steve-Mcl
That is the old ACE editor. It doesn't have the features of the MONACO editor.
If you have access to the settings.js file, update it as in this post: Getting the monaco editor to work in NR 2.x - #10 by Steve-Mcl