# Creating a parameter table

1. Open the project you want to add parameter tables to. Click “New” in the top right corner of the model page and choose “Parameter table”.
3. Click “Create”. This will automatically open the editor panel on the right-hand side.
4. Choose “Manual setup” for now. For importing tables check the task Importing a parameter table.
5. Add the number of columns needed with the “Add new column” button and name them. Column names are restricted, see the concept documentation of parameter tables for specifics.
6. Select the mathematical domains for the columns. The table cell values will be validated against these.
7. To allow empty cells tick the box in the column’s row.
8. Press the “Update columns” button at the bottom to save your schema. This will automatically navigate you to the editor where you can set the table values. To change the columns again you can navigate back by choosing the “Schema” tab.
10. Fill the table with the values you need. Pressing the tab key on your keyboard will jump to the next cell.
To download the table as a .csv file press the “Export as csv” button at the bottom of the “Values” tab.