sequencer camera blend

Hey, it would be really awesome if we had an option to easily set properties for blending cameras between active camera. Currently I can’t blend camera between player and sequence during beggining of sequence, I need to blend to sequence camera and then play it. It makes it really unresponsive to player and to me, as a developer.
I believe it could be nice to use as properties for clips in “Camera Cuts” track, like in anim montages. Or eventually, the way as sequencer animation blending is currently solved in 4.15.

Or am I taking it wrong and I can do it easy way now?