transition between two screens

I'm working in Ceros for a couple of years now, and every client wants a video transition between two screens. At the moment, the method I'm using is not 100% reliable because it seems to not support conditionals in order to figure out if the video has played to the end, and if the video didn't play through to the end, next time I click the button the video doesn't play — so you can see this doesn't look very professional.

Is there a fix for this?, a tutorial.