Wanted to give you an update!!
We built out a new tool that is early and we need feedback on what else needs to be added or changed: https://tools.cellsaviors.com/pack-planner
On top of that, we have a lot more stuff in the works to follow behind, we will be building out a new tool called...
You cannot copy as a string into that field unless you have commas separating the cells. You can export a CSV from Excel and it will work for your use case. We are also adding to our list to support line breaks which was the issue you encountered. Thank you for your feedback!
My buddy and I built a new tool to replace repackr since it hasn’t been updated in a long time. It’s https://tools.cellsaviors.com/pack-calculator we are open to feedback and using that to make it better over time! Also, we’re going to release more tools over time. Love to hear what everyone thinks!