If you want to implement your own Inventory Loader to, for example, add Products from something inside your module?

That’s easy!

Create a file <customname>.inc.php in the folder modules/Workflow2/extends/inventoryloader/

This file must have the following structure:

[prism field=file language=php]

[vc_table]LOADERKEY,internal%20key%20of%20your%20loader%20to%20be%20able%20to%20register%20multiple%20loader|LOADERLABEL,Visible%20Label%20of%20Inventory%20Loader|LOADERCONFIG,Config%2C%20visible%20if%20Loader%20of%20selected[/vc_table]

The CustomClassName could be chosen like you want. It only must equal in class definition and register function in last line.