Project Number autosequence

Hello everyone,

We were working in Unifier in the Cloud environment. We were developing BP's that autocreate Projects, and we are trying to use record number as project number.

But when we are design the BP's form, the project number data element doesn't allow to make formules and autopopulate data elements of the upper.

we have only achieved put a constant value in the project number.

Is there any way to use the same record number as project number??

Thank you very much