The information is stored in the Scenarios. In a Scenario, you can
specify which cells will change. In my example it's cells B6:C11. To see
the changing cells values for all scenarios, you can create a summary
(Tools>Scenarios, click Summary).
To create a new scenario (i.e. add information about a new model) --
Clear cells B6:C11
Enter the parts and quantities for the new model
Choose Tools>Scenarios
Type a name for the Scenario (e.g. A-03)
Click OK
The current values in the changing cells are shown
Click OK to confirm, click Close
To show any scenario, choose Tools>Scenarios, select a name, click Show
(In my example I have a list of scenarios, which is used as a source
for the data validation dropdown. You could also add the new model
to this list)
You can also program the scenarios. For example, to list the scenarios:
'===================
Sub ScenarioList()
Dim sc As Scenario
Dim wsP As Worksheet
Dim wsM As Worksheet
Dim i As Integer
i = 2
Set wsP = Worksheets("Pricing")
Set wsM = Worksheets("Models")
For Each sc In wsP.Scenarios
wsM.Cells(i, 7).Value = sc.Name
i = i + 1
Next sc
wsM.Range("G2:G" & i - 1).Name = "ModelList"
End Sub
'======================