How to drag icons in UI

Hi everyone,
I want to create an user interface in which the player can click on an icon or a button in the right bottom of the screen, drag it over other icon in the center bottom and then drag again to the center of the screen. Does someone can give me some tips how to do that? Thanks!

Docs:

Consider YT next time:

https://www.youtube.com/results?search_query=umg+drag+drop

This is a commonly discussed topic.