To answer above question the tickets haven’t been issued to anyone yet so would only be transferred once.
SSC tickets have the transfer option blanked out.
Ballot tickets don’t.
To help my ballot ticket last euros for Czech at Hampden was transfered to me from an English fan, then on to my mate and the transfer option was still valid for him if he has wanted to to transfer again.
My Croatia SSC ticket didn’t have the transfer option available at all.