Edit play axis in scatter plot

The font of the play axis is way too big. You should be able to edit this text just like anything else. Being able to alter the speed at which is plays would also be nice. Lastly, when clicking on a particular bubble you can see a line that goes through the bubble's prior position. And if you hold down Ctrl and select multiple bubbles, the visualization is very nice. But as soon as you click away all of the lines go away. If you could have a formatting option to 'show line/historical positions' that would be very nice.