There’s no real need to do this. What you should do instead is set the Display Name in the Profile page of your iNat account settings (which I see you’ve already done). This will be used in the iRecord Recorder field if/when your observations are imported. I’ve added a screenshot below of one of your recently imported obsevations for confirmation of this. (Of course, if you don’t set your iNat Display Name, your username will be used instead). If you want to see all your imported observations on iRecord, you can create an account there and use the Explore tool to list them all (i.e. go to Explore/All Records, scroll down to the Records list, enter your full name in the Recorder field, and then press enter).
PS: another benefit of setting your Display Name, is that is it makes it easier for third-parties to give you proper attribution if you’re using CC-BY for your media licences.
