Can a series of Write-on keyframes be linearly stretched?

[Guy Burns]

I've drawn an animated line on a map with the Write-on effect. The keypoints (waypoints) are at varying distances apart, so to achieve the same linear speed along the line, I also placed the keyframes at varying distances apart.

Now I want to extend the duration. I could recalculate where all the keyframes should be to achieve a linear speed along the line, but I thought there may be a technique within Premiere where I can simply move the end points (stretch the distance between beginning and end) and all other keyframes in between are stretched linearly as well.

So, can Premiere linearly stretch keyframes between a beginning and end point?

[Steve Griffiths]

I thought Premiere Pro might have the same function as After Effects for stretching keyframes = select keyframes, hold 'option' ('Alt' for PC) and drag the keyframes to expand or contract their spacing ... but no. 

A workaround might be to nest the clip with the animation and then time stretch it? Not elegant, but might work for you.

[Guy Burns]

Thanks for the suggestion. I'll try nesting, otherwise it will be a manual re-calculate.