Different dynamics

Hello, I would like to know if in a piano system with two keys (G and F), Dorico allows different dynamics to be applied to each staff (Example: Strong in the key of G and piano in the key of F) simultaneously in the same compass and if when reproduced they sound as they are written?

I would also like to know if slurs can be drawn going from one key to another in a single continuous line.
Thank you!

Does this help?