I was messing around with some command arguments in GOG Galaxy, and I want to delete some. However when I press backspace or delete nothing happen and it is still saved on my computer. Is there a way to delete command line arguments in GOG Galaxy?

I will bump this as I wish to delete parameters from command arguments but have the same problem as above post.

Update: I have managed to remove command line arguments. This involved uninstalling GoG Galaxy and re-installing. A bit drastic, but it worked.