How do you change from Intstant Book to not ? and is it a good thing? I"d like to Vet some..

Above ...

Here's a support doc talking about how to do it:

https://www.ownerreservations.com/support/articles/instant-book-vs-request-to-book

Turning off Instant Book is not supported by all API channels, and is not generally recommended since most guests these days prefer the ability to do Instant Book.