Working with PartList calculations on more levels we may use CRM system to do
For and After calculations.
But often the CRM system is not flexible to work with:
- If you work offline
- Small Buissness with no or simple CRM with no calculation functionallity.

I have made a simple calculation system in MS-Project using its standard
formular and spredsheet functionallity.
But it would be more intuitive to implement MSProject functionallity to the
group functionallity in Excel.


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