I would like to know if there is a way to add columns in qtableview that are not in an SQL table.

My problem is this:

I have a query that will return a number of product names. I want that to be the first column in a qtableview.
Then I want to have 3 more columns that I can edit such as setting a checkmark of which products to use and how many.

I will not be saving back to the database the table.

Any ideas will be helpful.

Thanks,

Pericles