This plugin is fantastic, but I've had some issues with it when using larger X/Y offsets, like when working on one huge sheet of sprites. For example, if I have a total canvas size of 720x2000 pixels, frame size of 72x72, and I want to use a Y offset of 1152 for the row I'm currently working on, the animation helper window will automatically use a Y offset of 776 pixels instead, and no matter how many times I manually enter 1152 it will reset back to 776 for some reason. This feels like a bug and seems to be tied to the total canvas size, if I change my canvas height from 2000px to 2100px, it will reset to 876 instead of 776.
Sorry if this is too much info, but it's been a slight inconvenience for me for a couple years so I just wanted to say something about it in the chance that this ever gets updated again, or if someone could explain how I can avoid this happening on my end.