If we are not using the digital outputs on the IO for carvan do we need to do anything with the unused pins? Like the OE signal or whatever?

Surely wouldn't hurt to tie the pad inputs off so they don't float about burning power but I defer to someone with more experience/knowledge than I

I asked this last time and the answer was: you don't have to terminate them. But I agree with @Tom it's good practice if you've got time