How to create 3 or more virtual joysticks

Hi, I want to make a game for android platform, this game use left virtual joysticks to control move,
and player have 3 skill, I want to use 3 virtual joysticks for each skill, because each skill use need to select direction or location in the scene.
currently unreal engine support 2 virtual joysticks, how can I use more virtual joysticks?