Combine 2 pianos into one

I imported a score in Music XML format that includes a piano. Dorico created 2 “Players” and called them Piano 1 and Piano 2, but really it’s just the treble and bass clef staves of a grand staff. How do I combine these into just 1 piano part?

Create a new piano part. Then select everything in “Piano 1” and cut-paste it into the treble clef… then repeat that with Piano 2. Then you can delete those original ones.

The easiest way to select everything is to select the first note, then go to Edit—Select to End of Flow.

Of course, doh! Thank you.