I thought of that but I'm hoping for a better work around to avoid losing the previous code. In addition, sometimes, the "TOOLS" within Code Studio are restrictive so there is potentially a toolbox which doesn't have all of the tools they need. There is a work around for the tools by going into TEXT mode but I'm still looking for some easier flexibility.
In a perfect world, Unit 5 would have an EXTRA STAGE at the very end of the UNIT with 4 blank bubbles. Each bubble would be the same. A BLANK canvas with a full toolbox and a SUBMIT button for the students.
This would give teachers the option to create-assign 4 additional problems.
Perhaps even use this as an ALTERNATIVE Assessment. Writing a full program from scratch based upon some requirements we create and provide to the students.