[Koha] Where to put Self mark?

[Myriam Torres]

Hi,
Thanks so much for your previous help.
Now I have a different Issue: I am importing data from a old database to
Koha. In my old database I have a field called Shelf mark, that corresponds
to the location of the books on my library. Now I am trying to move that to
Koha, but I am not sure where should I put it.
I tried using  952$j Shelving control number, but it does not work. Should
I put it on 952$o Koha full call number, or on the $082 Classification
number? or is there other place for it?

*$082  **                      Shelf mark*
254                  253:M113
535                  535:J651
535                          535:R831

Thanks

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