I have Movie Edit Pro 14 and I would like to change the play speed on a gradient, as with an object curve. I have not found a way to do this using object curves and so I am wondering if there is another way to make this happen.
A (time and effort consuming) possibility would be to cut your clip into many short pieces and then stretch each in or out a different amount. The more cuts and the more gradual the speed changes the better -- if you have the patience!
I'd suggest making the pieces of roughly equal playing length after the speed adjustments. I'd also recommend an upgrade to a newer version. They offer so much more!