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can you give me the solution to answer the format 

of my numbering 03.01 .... for folio 3 and 04.01 for the beginning of a numbering of folio 4

thank you in advance

I didn't understand everything, can you clarify?

Apparently it's SW Electrical.

I understand that it is a question of identifying threads by a number consisting of the folio number and a sequential number local to the folio.

On the other hand, I don't know how to go any further...