Dorico 4 First Time

Yes, a Bb clarinet.
If I want to start an arrangement for tis instrument, do I set it up from scratch in transposing score or concert pitch. The music I am writing is in Bb and Cut Time. How is this done?

If I go into concert pitch and set the Key Sig to Eb and switch to transposing score it shows the Bb I want. Is this the correct way to do it?