Invoice Overdue filter issue AND Items column headers list

Hi,

I have two questions. Since you're replies take really long, I just want to merge these two:

1. In the Invoices list section. When I click the "Overdue" filter (please see screenshot), it does not work. It will show nothing. https://www.dropbox.com/s/mqudym5r8qcallv/Screen%20Shot%202022-08-26%20at%2012.45.33%20PM.png?dl=0

2. In the Inventory -> Items section... How can we add or customize the header section? Like, if we want to add a "Custom Field" there and not just the default ones? Default ones are: "Name", "Category", "Stock", and "Sale/Purchase Price". https://www.dropbox.com/s/hddnyxdwtv0d17h/Screen%20Shot%202022-08-26%20at%2012.48.12%20PM.png?dl=0

Thank you.