size/style

Hello -

Is it possible to change the size of the staff for printing out? I am using Musescore for arranging stuff for my pupils (quite young - years 4-6), and am wondering if I can make the whole thing a bit bigger and easier for them to read. Also, is it possible to change the style of the staff and notation? A lot of my colleagues who use Sibelius like the lead-sheet style for children's stuff.

Chris