There's a way to get an effect go between groups selections?, ej I have 4 groups with different amount of lights, and I want that the selections of my effect takes a different group in each step. thanks

Group selection
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Yes, that should be very possible. Try to understand the selection grid. There you can position your heads exactly as the effect will later work with them.
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And mabye read the topic "If Keyword" in the MA3 Manual.
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The align-function currently only works on the x-axis (left to right), so your groups would need to be arranged in columns, rather than rows, if you want to use the Align function to distribute the phase group by group.
You could use the TransposeXY button in my GridTools plugin to easily rearrange rows into columns.