Well, but I have to say that it's have some "instability". I noticed that QMC2 can hang ramdomily if you scroll between systems.
One way to avoid a lot of trouble is just don't using "controls" in video options. I'm now using only "autoplay".
I'm testing extensively to see some ways to avoid hangs to implement video snap support in the alternative templates in experimental basis.

"A user interface is like a joke. If you have to explain it, it's not that good."