Currently I think it works well with the right joystick left and right while holding the screen, I'd rather there be the possibility of resizing things in home.
Big Screen does it this way and I've caught myself attempting to do it repeatedly with confusing results, until I picked up on the visual cues on my hands.
As long as we can keep it to the thumbstick as well, or make it an interchangeable option. I like the BigScreen method, but it can be a little finicky at times. Maybe it wouldn't be so in Dash, but I like being able to use just one hand like a remote, without having to reach and point as well.