The SQL Editor window could have a better presentation of the SQL code; two issues observed
First, that it's simply plain text without even a fixed-width font, much less syntax highlighting
Second, if you type in some manually formatted SQL code (e.g. with line feeds and indentation), then click on the "Visual Query Builder" button, then click back to the "SQL Editor" button, all the formatting is lost as it is converted to one run-on line of code, which is very difficult to read.
I understand that going between the Visual Query Builder and the SQL Editor is bound to have some issues; nonetheless the "idea" is to allow a user friendly display in the SQL Editor window:
Use a fixed width font, (should be trivial to implement)
My "implementation ideas" are based on a couple minutes with google, so hopefully this is a very feasible request; my user base is very likely to spend more time in the SQL editor than not, so this would be a valuable UX addition. Thanks!