Space inside a staff, between the lines

[Nils]

Hello,

I forgot how to increase the spacing between the stafflines, inside a staff and 
can't find it again.
I need this for partly done compositions to write the missing parts by hand.

Nils

P.S. for the same purpose: How to deactivate the drawing of stems? Just 
transparent would be enough, the rhythmic spacing should stay as it is. These 
get in the way all the time :)