Hi ! It would be nice to increase your script editor. Just have a better undo or be able to save our script in a file and reload it would be a great plus value. It is too easy to lose our script wh...
Why dont you use an IDE to create your own scripts and then you can just use them
Here is one you can use to create a groovy project.
https://www.jetbrains.com/idea/
Here is how you can create custom scripts for soap ui
https://www.soapui.org/scripting---properties/scripting-and-the-script-library.html
This will take care of lots of grief you are having.
of course you can raise a feature request
https://support.smartbear.com/
But in the meantime you do the above mentioned steps as a work around