How to link an APIs on a new categories or page that I created in webMethods developer

Product/components used and version/fix level:

webMethods Developer Portal 10.11

Detailed explanation of the problem:

I would like to create a new page and make categories, which each of the category can link into the related APIs. is it possible to make it? and hows to categorizing the related APIs into each category?

Error messages / full error message screenshot / log file:

Here’s an illustrated of the categories that I created and expect the categories can link into the related APIs like the illustrated below

and then I have struggling in customizing the UI design, is there any code or github of this 10.11 developer portal view? thank you.

Question related to a free trial, or to a production (customer) instance?

production(customer) instance