I ran into a fairly complicated line, that looked like there were multiple planets, but it wasn’t very intuitive how to add multiple transit intervals. I happened upon it by chance, double-clicking. After that, I realized that I made a mistake, and tried to go back to the first line to adjust it, but couldn’t figure out how to do it. Finally, I got a little frustrated and double clicked a lot, creating something like 9 transit intervals. At this point, the delete line section disappeared, so I was stuck either submitting a wildly inaccurate measurement, or just close out of PD in order to cancel it.
Would it be possible to simply put a button there to add additional transit intervals, and when you click on the colored text in the lower-left, that it opens up that line for editing?