Programmatically set (or change) the master role

Hi all.

Is there a way, maybe a function, to set the master role of a single role?

Fill the "Derive from role" field.

I mean, other than a direct UPDATE AGR_DEFINE .... which works, btw

I would prefer a "lawful" method.

Any hint?

As an alternative also the creation of a new role with the master role set.

My current method is to create the roles via PRGN_RFC_CREATE_ACTIVITY_GROUP and then use SECATT to set the master and do other things.

Thank you