The Connect surface tool by Dimitri.

[Dimitri]

If you read it carefully you will see that it speaks of 'straight cuts', however... that's the same thing with connecting by choosing the 'shortest distance', given that any route other than the shortest can not constitute a straight cut. There is no need to stick on words, it means the same thing. : - )

Anyway, if it can be achieved by a plane cut, no problem. The result is that matters. : - )

I am putting below the link, so that we may have it here:

https://www.blender.org/manual/modeling/...nnect.html