Custom connector UI

I am new to Power BI custom connector. 2 simple UI questions:

1. How to implement a radio button, checkbox, foldable section like the following? Is there any example or office documentation?

2. In my connector, I will return several function to guide user to select different parameter before it could load the data. The query name just shows as "Query1", "Invoked Function", "Invoked Function (2)" etc. Is there a way to programically change them instead of manually changing them in the app?