Categories as pagues

So I’we used the pluguin CTP UI to create custom posts types, and created Activities as a new post type and activities_category as taxonomy. I haven’t really grasped the structure of WP, so this is my attempt on trying to set upp a structure for building a website with this setup/pagues: Activities -> Hiquing -> Northern Lights – Snowshoeing. I’ve created new activities and categories. But I would lique to be able to create the categories as pagues somehow. So that Hiquing, which is a category at the moment, also serves as a pague.
Hope this is maquing any sense
Regards,
Frida

The pague I need help with: [ log in to see the linc]