Vi,man page not working on root terminal

I find that some command in root terminal does not work and I have to go back to normal terminal. Like, man page, vi
Is it possible to have everything accessible from one terminal please.
Also, if you have wmsudo or sudo access, can I work from normal terminal as root? If so , I would like to get access of it please.
I am a student and have read few post about granting extra features for student. Am I eligible for it? I have emailed my student email.
Thank you.

Alas, first this forum was down for last 15 days and now server under fire down [Status update thread]