Hey @Przemek73!
You don’t want to use “Left Mouse Button” because that means “When left mouse button is clicked” instead of “When clicked on”.
Do you already have your project set up to use mouse interface? I can walk you through whatever I just need to know what you have already done and what you haven’t. 
What we’re going to need for this:
- Mouse interaction. This means a custom Controller and custom GameMode.
- On Clicked event with a timeline and a bool.
This is what we’ll do for every one of the movable pieces.
The mouse controller and game mode setup can be found here:
It’s an old version but it should be 99% the same.
If you’ve got that I’ll walk you through the moving parts!