Linking Office 365 Pro Plus with old Hotmail ( Free) acc

Hi,

I've been a MS Hotmail user since late 1990s and have accumulated storage close to 5GB.

I also have a Office 365 Professional Plus account on different mail id, which has a 5TB storage almst un used.

Can I link and route all my old Hotmail mails to new id, so that I get to store them and retrieve them from the new id and storage.