So want to set up a new plugin I purchased supergrid but realized I don't have a page in database settings when setting up the database.



This is how mine looks





And this is how the invision community guide looks

The 'Page' tab doesn't appear when editing a database (which is what you are doing)

When you created the database, if you left the 'Page' tab at defaults (see screenshot) then you need to manually create a page and add the database to it, via Page Management -> Pages.

If you changed the default to "I want to create a new page for this database" then you would have filled out the details for the page and it will be sitting in Page Management -> Pages.