If you have 9.2 sys/emunand, you can rsavout before claiming a gift. That way every time after claiming it, you rsavin and can reclaim it again. The ramsav generated from rsavout doesn't show changed party data. So you can have up to 5 of the same event in your party, and if you want more, you rsavin after claiming the event, put the event(s) in the PC, rsavout, claim the event, rsavin, the new ramsav now would have your previously collected events.
All this without PKHex, but it's deemed obsolete when there's save managers and PKHex. I actually still use it, I was able to claim a pretty good HA Articuno, kept it, and can still claim another thanks rsavout/rsavin. If I knew how to edit NTR ramdumps to repeat events and/or battles, then ramsavs would be obsolete to me, as I would no longer need 9.2 emunand.