Enharmonic key signature options for transposing instruments

Hello,

I hope everyone is doing well. I am working on some music and I've noticed that certain that none of transposing instruments aren't able to use the keys of C#major and/or Gbmajor (and their minor equivalents). I'm assuming that there is some kind of workaround for this does seem like a major flaw. I'm probably not the first to come across this, if so I'm happy to delete this post if there's another one with the fix. Currently using version 4.3.0

Have a great day!

Just an edit, I was able to find the solution in the "Staff and part properties"