I understand that Testcomplete is a scripting language and some use the tool for automation script development with "record & playback", however, it would be much appreciated have the option of devel...
This is my pain too and I am happy to see that I am not alone. There are a number of other ideas addressing missing functionality of TC Editor compared to any decent IDE. An ultimate solution as for me is to enable possibility to work in an external IDE unlocking all the power it can offer.
I have ended up using VS Code + this tool here https://github.com/deitry/testcomplete-ts-api to develop in JavaScript. As long as I don't need debugging I just run TestExecute to execute the script from the command line within VS Code. I can also halfway use typescript to define types and apply typing with jsdoc syntax which TC treats as a comment I guess. It is so much more efficient to work in a proper IDE with all the additional tools you can install in it!