Total Import Pro

Hi,
I have a little problem with Total Import Pro. I had imported all products from feed with succes. After that i created a top main category and put all category from feed in this one created by me. The problem is that when i want to update database from the same feed and are new products wich i don't have in my shop Total Import Pro create again those categories and put new products in them. The question is : how can i import products in a specific main category created by me (not present in feed). I want all those categories and product to be imported and updated in a main category from my opencart wich i created. Can this be posibile ?