Multi-measure spacer rests

[Sámuel Simon-Németh]

Hello everyone!

I am starting out with GNU Lilypond, and so far it's been great. 
However, when I create dynamics for piano using `\new Dynamics`, I 
obviously need to use spacer rests to put dynamics in the right place.

This is all well and good, however my question is: How do I "space out" 
multiple measures. Because right now I use `s1 s1 s1...` which i know is 
not right.

Please be forgiving, beginner here, I have not found anything in the docs.