I’d love to be able to use Non-Inventory items on Billable Time records. This would allow a lot more control over what line items on the resulting Sales Invoice would look like. It would also simplify choosing which rate to charge for those hours/minutes. I could have an H1, H2, and H3, item for Billable Hours each with a different unit price.
I know others have asked for per-customer pricing matrices in the past which were shot down for being too complex. I agree. This would just be one price per non-inventory item and whoever is entering the Billable Time entry would choose the desired item.