I have items with attribute which create variants.  I've given each variant its own barcode number (book ISBN) as well as an internal reference SKU.

When I go to create a new sales quotation or sales order, if I enter the SKU for a particular variant and select it from the list, a popup of the item appears asking me for the various options.   If, for example, I enter 414123, the popup shows me SKU 413123 (the 3/4 is a selectable option) with the fields populated for 413123.

Is this making sense?

I'd just like to be able to enter a unique SKU and have the right item pop up without having to pick up my mouse. . . .