I do not like the bult in stata editor. It makes reading stata do files a chore. I come a bit from the programming world which will show commented lines and blocks in a different color and highlight reserved words. I looked for al alternative stata text editor / do file editor and like Notepad++.
Notepad++ is a good alternative. You can still run blocks of code (like control-D) and who do file (like control-R) if you set it up. Plus it’s free.