problem with group

I create a group of the similar panel, such as with a range of 0.5% of one panel of any.
However, in each group, it is not permitted to share the same panel.

↓↓↓↓↓↓↓ I used, the method has the problem that overlapping panels each group. Please tell me the solution.   ↓↓↓↓↓↓↓↓↓