Next Button move screen scroll by constant value.

Hello,

I'm trying to create a next button to move the scroll bar from the top 402units every time it is clicked, is this possible?

For exampel 1st click it'll move it down to 402
2nd-804
3rd-1206
Etc...

Private Sub CommandButton4_Click()
UserForm1.Frame3.ScrollTop = 402 

End Sub