Thanks! I did try “Simple Unbroken Sequence (clone info lost)” but still had some png files with “hold” in their file names, but then found that if I just added a new layer in the X-Sheet (with a blank frame- no drawing) and cloned that one frame all the way to the end, then selected all the clones and made them original, the export (combining all layers) had perfect sequential pngs for opening in photoshop. I also realize once more export options are added, this will all probably be a moot point! 🙂
Thanks once again for a really great effort, even in this early stage this program is the best I’ve ever used for hand-drawn work.