How to save my work

No problem, glad to help. You might also want to keep an eye on this forum topic and maybe even bookmark the CSIDE website itself so you can download & try a copy as soon as it’s released. It completely replaces the usual editor / browser setup so all your writing, coding & testing (including Quicktest & Randomtest) takes place in one neat package, as well as offering many other advantages such as superb project management and much easier & simpler file handling.