I need to make a user have full capacity on quick books

Hello there, @amorrison.

You can invite your user as a Company Administrator in QuickBooks.

Here's how:

1. Click the Gear icon at the top-right.
2. Select Manage Users.
3. Locate the user, then tick the Edit option under the Action column.
4. In the User Type drop-down, pick the user type you want.
5. Once done, hit Save.

For further guidance with the process, consider checking out this article: Add, delete, or change user access.

Just in case, I'll add this article for future reference: Learn about user types in QuickBooks Online.

Please get back to me if you have any other QuickBooks concerns. I'd be happy to answer them for you.