Gunther: would you please consider a video tutorial on HDR bracketed Timelapse? I have read the forum on this subject but still having a hard time figiring it out, I’m a long time LrTimelapse user, thanks!!!!!

Hi Ken, I don't recommend doing HDR timelapses. I already explained a couple of times why, please use the search function.
If you really want to do it, I recommend stitching the single images to HDR DNG in LR and then process this sequence as usually in LRT.