Printing a part of a score

[Rainer_T]

How cant I print a part of a score? (E.g. print the bass part from measure 5 to 9)

[57Gregy]

Welcome to the forum.
I would copy that part to another track, select that track's staff view, then print.
Delete the extraneous track before saving, if desired.

[57Gregy]

Oh, it may want to print the entire length of the song, wouldn't it? You can cancel printing once the part is complete, or, copy that part to another project where the entire project is only the length of that clip.
I'm sure there are other ways, too.