How I can merge many callsign to my main

Savas Pavlidis

Hi admin,
I use as main callsign SV2AEL
Also during 2021 used SX200AEL as a special event station
Also as Contest call, I used J42A and SW2A as Single Operator for many years
How I can merge all these calls (SX200AEL-J42A-SW2A) to my main RDA account SV2AEL?

Those contacts are made from (SX200AEL-J42A-SW2A) callsigns.
Do you count those contacts in my main call as SV2AEL?

Thank you
73 Savas