to get digimon entries on digi'pedia
just place the digimon you like on the hub let him/her walk around for a bit then check if he/she got registered on there
(digi-pedia entries are permanent when they got registered)
So just by getting them to roam in the starter hub they get registered, i see, but then whenever i change Digimon (via evos, nature, etc) i remember only being able to read my current Digimon's entry in the digipedia, it's still like that or now i can go and read entries from Digimon not currently present in my team?