This contrib worked exactly as it should but the usage was a bit cryptic for a non-programmer shop owner. I have added miscellaneous additions to help clarify usage.

- added two english admin buttons to clarify usage.
- clarified text in english admin
- added english text for search by model
- centered some text buttons in table cell
- deleted some extra cells and rows
- added tool tips to some buttons to again clarify usage

Complete package + update guide

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