Welcome, @AAles.5, to the community!
Yes, of course you can set the byte option during programming.
There is a lot of information about it, e.g. in the Knowledge Base, either using a search for "How to change the Read Out Protection" or directly here. Even if the G4 is not explicitly mentioned there, the procedure is essentially identical.
Note, however, that level 1 is only a simple protection. With level 2, you are at the maximum possible security level, but level 2 is a one-way street because you can no longer access the memory from outside. Details can be found in RM0440, e.g. section 3.4.
Hope that helps?
Regards
/Peter
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