If you open the Main Dialog of Calculation the following files are handled:

1.CalculationConfiguration.Collection.xml => CHECKED OUT

2.PlantToolsSetup.xml => CHECKED OUT
 

If you close the Main Dialog of Calculation the following files are handled:

1.CalculationConfiguration.Collection.xml => CHECKED IN
Deleted *.calc files will be removed from the CalculationConfiguration.Collection.xml.
Added or imported *.calc files will be added to the CalculationConfiguration.Collection.xml.

2.PlantToolsSetup.xml => CHECKED IN
 

If you delete a Calculation the following files are handled:

1.*.calc file => DELETED
This includes the removal of the *.calc file from the work folder as well as the removal on BIM360.
 

If you add a new Calculation the following files are handled:

1.*.calc file => CHECKED IN
 

If you edit a Calculation the following files are handled:

1.*.calc file => CHECKED OUT
 

If you edit a Calculation the following files are handled:

1.*.calc file => CHECKED IN
 

If you import a Calculation the following files are handled:

1.*.calc => Copied to the project => CHECKED IN
 

Sometimes it is more convenient to adapt the configuration directly in the *.calc file without using the Wizard.

This is how you do this:

1. Open your collaboration project in AutoCAD Plant 3D

2. Open the Calculation Main Dialog

3. Select the configuration you want to modify

4. Click on the Edit button to open the Wizard
This checks out the *.calc file.

5. Click on Cancel to close the Wizard
The *.calc file will still be checked out.
Do not close the Main Dialog yet.

6. Open the *.calc file under [PROJECTFOLDER]\ACPlantTools\PlantExpressTools\Calculations in a text editor

7. Make your modifications in the file and save and close it

8. Click on Refresh in the Main Dialog
This will read the *.calc file again so you see if there are any error in the file.

9. Close the Main Dialog
This checks in the *.calc file.