Change mouse (lef) location with every repeat

[universe]

Hey

how can I make a rep loop so, that on every iteration of the repeat something is added to a mouse position?

I want to do it, because the GUI Im working with doesn't accept keyboard commands and I want to switch down a line on every repeat.

So something like
Macro AB

Code:

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,lef 228 440+40 w1 1

While the 40 gets added to the 440 on every repeat.

[Gintaras]

Macro Macro2706

Code:

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int i
for i 0 10
,lef 228 440+(i*40) w1 1