Deleting steps for a day

Hi All, I am trying to delete the steps for a day on My Fenix 6X.

I have managed to delete them online, so it's showing no data for that day.

I lent the watch to someone, and they went and exceeded my highest step count, so that's now showing as my record.

I am quite happy to lose everything for that day.

Is there any way to do this - I don't mind going into the watch and deleting files.

Thanks.

Paul