Defining new Value Category for Material Cost

Hello All,

We have a requirement for display of material cost in two parts, one as Internal material(for spares) and the other one as Consumables(for grease, oil, cotton waste etc). As far as the defining of value categories, I understand that we can have two value categories defined as Internal material and Consumables and assign the relevant Cost elements that are derived from OBYC. Now coming to the display of costs in the order, as per the standard I see that we can have four value categories - Internal Material, Internal Labor, External Material, External Labor.These are the four cost key figures which are displayed even in the MCI8 report. I wanted to have the bifurcation in the Internal Material cost as Internal Material and Consumables separately.Though we define the Value category for Consumable Cost, to which Cost key figure can we assign it?(Information Systems for Plant Maintenance and Customer Service>Assign Value Categories to Maintenance Cost Key Figures) I cannot do the assignment to Internal material as it will be used for Spares.

So my question is whether we can define new Cost key figure by name : Consumables and then assign the Value Category : Consumable cost to it?

So when I execute an order I have to get display of costs as: for ex -

Internal material: 220USD

Consumables: 100USD

External Labor: 10USD

Internal Labor: 200USD

Hope I am clear in explaining my issue.