If you set Stretch amount to maximum (1024.0) - Render could offer "set to current stretch length" as a button

[esaruoho]

Expected: There's a way to render the "maximum length that you've set" by clicking on a button, instead of having to manually type in the number/length.

[essej]

Good idea, it should probably just have the selected stretched length filled in there in hours, when it comes up. Having a button to reset it would be a bonus.