[V4MD] Auto-incremental unique field

[info at vallemediatime.com]

> > Hi Ruslan and list,
> > In Valentina what is the better way for use (add, update...) a field_id
with
> > an auto-incremental unique value
>
> Hi Paolo,
>
> Sorry, I have not catch question.
I need to create a field_ID with a auto-incremetal unique number
eg.  0001...0002 or 1000...1001 and so on.
In Valentina, when I add a record I get automatically RecID 1... 2...
Is possible to create a custom number direclty from Valentina or I must
create it by my Application code?