When you open the procedure, the Create tab first appears At the top of the Create tab you select range of parts to calculate the stock levels for.
Further down you select the stock levels that you want to calculate and the stock levels that you want to save. You can also enter the number of decimals you want to use for the calculation results. If you do not select to “Calculate” a certain stock level, the system will load the existing value for that level from the previous calculation and use that for the part. Under Part types you can select which part types you want to include in the selection and under Alternatives you will find additional alternatives for the calculation.