How to use slider to control Sequence.

I have a well-made level Sequencer and a Widget, and there is a Slider in the Widget.

I want Slider to act as a progress bar to control Sequance playback.
I found two blueprint nodes “Get Duration” and “Play To”.

But I still have no idea, the maximum value of Slider is the number of Sequance frames. I want to let Sequance show the frame on the Slider like a video.

Can anyone give me an example. Thanks!