Is it possible in Dorico? In musescore there is settings for this.
Yes, it’s a rather weird thing, it looks kind of ugly, but for me it could be useful.
Say, as an organist I’d like to play a long Bach piece without page turns. It would be just for me, so I don’t care about aesthetic very much as long as it’s legible. In such a case every bit of space might help
In my practice I sometimes use scissors to make sheets narrower - I cut off the clefs and key signatures on the left and then also the right margins