[db-wg] converting a C class from PI to PA

Hello. What's the right how-to convert an existing C class from PI to PA? According to this: https://www.ripe.net/manage-ips-and-asns/ipv4/converting-pi-to-pa "Members can request this update via the LIR Portal." ... but I was not able to find HOW this may be done (If I try to edit the object, the field "status" is locked, and I can't edit it anyway... while I can edit other fields as usual) Regards -- Franco Tauceri DomainRegister m: 39.3483064202 w: https://DomainRegister.international e: franco.tauceri@domainregister.it