Ensure that the project to which the calculation belongs is active.

If you need help, you can read our article on switching active projects.

Select 'Saved Calculations' from the project section of the left-side menu.

The project section is the one below your current project's reference and name.

Click on the calculation you wish to edit. You will find it by its name.

Edit any calculator parameters as required and click 'Calculate' at the bottom of the form.

If you need more help with the form, you can read our article on how to make a calculation (steps 2 to 10).

On the Calculation Results table, select a product by clicking on it.

You can also use the filters to show more or fewer options.

Click 'Save to project' to save the changes to the active project.

Alternatively, click 'Save + Generate Cert' to also generate a certificate for this calculation immediately. You can read more about generating certificates in this article.