Custom even & Tick even

Hello everyone, what’s up !

I would be very grateful if someone could explain to me,
how custom even works with even tick.

Let’s say I have Blueprint witn a box that I want to move across the screen
one unit each time.
If I create a custom even in order to call it in the sequencer,
I need an even tick to repeat the action?
How to do ?

Yours sincerely
Denis