Magnet function for creating events and tasks

I often create events, that are very short (e.g. 3min) and follow each other directly.

It would be so nice, if there was a magnet function you could enable, that when you create a new event it sticks at the end of the one before

e.g.

My lunch ends on 13:21

and I want to create a "powernap" following that, it should instantly take 13:21 as the starting time.