> For the complete documentation index, see [llms.txt](https://help.auxalia.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.auxalia.com/plant-tools/white-papers/workflow-with-vault-and-planttools/making-modifications.md).
# Making modifications
Now we have a look how modifications to the PlantTools configuration files are handled. This description includes also adding new configuration files.
Making Changes
First make sure you have the 3 files from the **Related Files** folder in your local project and that you unpacked the zip file with **PT\_Unpack.bat**. This is not necessary if you already are working with PlantTools and the configuration files already exists. As an example we will modify the settings for the Bolt Calculation in PlantExpressTools. We start PlantProjectSetup from the ribbon of PlantExpressTools.
We go to the **Bolt Calculation Setup** node and then check **Activate Bolt Calculation** and click on the **Apply** button.
Then enables various settings.
At the end of **Bolt Catalog** we click on the **Copy** icon which copies the Bolt Catalog into the project.
We see the location of the bolt catalog under the **ACPlantTools** folder.
Click OK to close PlantProjectSetup and check the folder. You see the **BoltCatalog.db** and the modified the **BoltCalculation.xml**.
Checking Modifications In
Because of the changes, the **ACPlantTools.zip** file has to be updated and checked in, so other users can get the changes too. First, we need to check out the **ACPlantTools.zip**.
Now the file is checked out.
Now we run the **PT\_Pack** batch file to update the zip file.
A Command Prompt will appear and compress the **ACPlantTools** folder with its files. If we look in the zip file we see, that the file has the current date and time. When opening the zip files, we will find the **BoltCatalog.db** and the updated **BoltCalculation.xml**.
If we refresh the Project Manager we see the change symbol for our two files.
Now we can check them in for our colleagues.
The files is already selected.
Update Files for other users
The other users of course need those changes too. They see the red icon in Project Manager which indicates, that there is a newer version available on Vault.
Since there is no Refresh function in Plant 3D to get the latest version we just check out the **ACPlantTools.zip** file.
Next we run the **PT\_Unpack.bat** file. A command prompt dialog will appear and the expansion will be executed.
Then we can check in the **ACPlantTools.zip** file again. Or use **Undo Check Out**.
After this, we have to close the project and open it again or restart Plant 3D to make sure the new files are used. When opening **PlantProjectSetup** again, we see, that the **Bolt Calculation** is enabled and the path is set to the project.
And the **BoltCatalog.db** and the **BoltCaclulation.xml** are available as well.
