I have read that there should be arrows so I can move the UI but there are none. See the screenshot. Even if I change the settings so only 1 button shows, there's no arrows. 

heya. you've disabled it then.

/radar move

Typing /radar move did not make the arrows appear.

heya. each row is 5 buttons and you have 5 rows. the 6th row with the arrow is clipped off screen. you won't be able to see it when it is clipped off of the screen, and you wouldn't have been able to see it with 1 button with it toggled off or if it's disabled in the config.

default:
"Move Arrow Text": "↕",
the arrow is shown by default to all users. you must type /radar move to toggle it on or off