> 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/plantexpresstools/how-to-use/calculations/user-interface.md).

# User Interface

This chapter describes the main user interface of the Calculation function.

![](/files/ibGPpfdDVxYiOgvqaj7A)

The user interface shows you the project at the top. Below that you have the following buttons:

| **Button** | **Description**                                                                                                                                                                                                                     |
| ---------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| New        | This allows you to create a new Calculation (e.g., [Calculate simple Example](/plant-tools/plantexpresstools/how-to-use/calculations/calculate-simple-example.md)).                                                                 |
| Edit       | This allows you to edit an existing Calculation. Make sure you select the Calculation first. You can also edit a Calculation by double-clicking on it.                                                                              |
| Delete     | This allows you to delete an existing Calculation. Make sure you select the Calculation first. You can also multi-select Calculations to delete them in one go.                                                                     |
| Import     | This allows you to import existing Calculation from some other location or project. A file dialog will open where you can select one or more configuration files to be imported. The files will be copied into the current project. |
| Refresh    | This will reload the Calculation files in case you have edited them manually.                                                                                                                                                       |

The table below the buttons can be filtered in case you have a lot of Calculations. Just type in any text and the table will be instantly filtered.

The columns in the table have the following meaning:

| **Column**    | **Description**                                                                                                                                                            |
| ------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Type          | This shows either PID or P3D to show whether a Calculation is for P\&ID drawings or 3D drawings.                                                                           |
| Class Name    | This shows the Class Name to which the Calculation applies.                                                                                                                |
| Property Name | This shows the Property Name which will be calculated.                                                                                                                     |
| Status        | This shows either Active or Disabled, but it can also show an error message. When moving your mouse over the row you will get a tooltip with more details about the error. |

![](/files/5HPuPe0d9letJGwyW0vb)

\| | Disabled | This allows you to deactivate or activate Calculation. Multi-selection is not possible. |