I'll try to answer your questions;
Do the studios have ocean view? Or should I request an inn room?
>>If you want an ocean view, you need to book an Ocean View Inn Room (OVIR)
Is 4 days too many too little.
>>>For those who enjoy a laid back, relaxing beachfront experience, 4 days is a short one...but a great start if this will be your first visit.
How far to make diner reservations?
>>>if you mean for the resort in advance of your stay? Then I would be calling about 60-90 days before your visit. Especially for the Sunday Brunch, or seafood buffet.
Is there a Publix close by?
>>"close" is in relative terms, for Vero, yes. Cross over the bridge into Wabasso, hang a right and publix will be on the left about 2 miles I'd guess.
Do they do pedicures?
>>At Publix? no.

But, the Spa at the resort does
Can you rent bikes by the day or just hourly?
>>I believe you can rent by the day, I've never done this but I'd be surprised if you couldn't (check post 1 in this thread you may find more on this there)
Do all the charges go to your room?
>>>yes any meals, drinks, rentals, etc can be put on your resort key if you have placed a cc on file
How far is to Port Canaveral
>>driving north on A1A it's about an hour, depending on traffic & speed
HTH