Adding distance between kinetic panels

Grasshopper
1

Hey, I want to add some distance between the kinetic panels, how can I control it in this code?
kinetic panels.gh (15.6 KB)
experimented surface.3dm (148.8 KB)

2

pic
pic1652×1008 457 KB

3

grafik
grafik958×365 50.5 KB

?

4

it worked, many thanks

image
image920×628 66 KB