I want to move several categories to be subcategories of one category

Question

I ended up with several mortgage interest categories, and want to integrate them as sub-categories under one main category, to get an easy total. How to do that and not lose any existing transaction categorization?

q_lurker · Accepted Answer

Pull up the category list (Ctrl-Shift-C)
Right click on a category you want to change.,  Choose Edit
Click the subcategory selection and fill in the applicable higher level category.
Click 'Save' button

You can rename the category at the same time.  Existing transactions associated with the original category will now associate to the (newly renamed?) subcategory.