adding a measure?

Hi there,
First pardon if this is a simple question but I've searched the manual and can't find the answer....I'm using the demo and doing step input....when I create a new score in add a bunch of measures...however when I've filled them...I can't seem to find a way to add more...
Could someone let me know?
All the best,
Eric
First pardon if this is a simple question but I've searched the manual and can't find the answer....I'm using the demo and doing step input....when I create a new score in add a bunch of measures...however when I've filled them...I can't seem to find a way to add more...
Could someone let me know?
All the best,
Eric