How to disable keeping subcategories when batch moving items in backend items manager

I have 200 items that I have batch moved to a different category.

The original category still appears in the secondary category (am I doing something wrong in the batch change?)

I either need to know how to batch move items to a new category without the original category appearing in the secondary category OR I need disable secondary categories..

Please advise. thank you

Please close this topic - I figured it out - thank you