Entity Reference Quantity

A stock entity reference field with an accompanying "Quantity" value in the field definition itself. Useful for inventories and similar scenarios, where an item and a number are closely linked, but you don't want to build a separate entity just to store the two distinct fields.

Also includes two widgets (autocomplete and dropdown selection) that allow entity selection as well as population of the quantity value. Based on this article by Lullabot's Matt Robison