Sheet metal nesting

Hi,

I use NC Sheet metal of Creo 3.0 for auto nesting with clustering option. The repeat factor is set to 3 with weight priority 0.

I want to eliminate the gap between groups. Attaching an image for your reference.

I tried with different values of repeat factor & weight priority but no success.

Is there any other way to reduce the gaps (highlighted with box 2)?

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Dhinesh