Change of Key Signatures

I have a piece of music which starts in C maj, moves to Bb maj and then to G maj.
In the change from Bb to G, the original shows two natural signs cancelling the two flats before the new key Signature.
Can this be done in MuseScore?
Currently OS: Windows 7, Arch.: x86_64, MuseScore version (32-bit): 2.3.2, revision: 4592407 for live work.