If none of the preset dyes matches your requirements, you can create a new custom dye.

1. Open the Dye Editor via Tools > Dye Editor....
2. The Dye Editor dialog opens.
2. In the File menu, click the Save As Folder... entry.
3. In the Windows dialog, create a new folder to save your custom dye database,
   e.g. C:/User/Documents/Carl Zeiss/ZEN/Documents/New Folder.
   Name the new folder, e.g. New Dyes.
4. You have created a custom dye database to which all new dyes are stored.
4. Click on the New Dye entry in the Exeml Collection list.
5. The properties section opens.
   
5. In the Names section, click in the Name input field to change the name of the custom dye.
6. The name enables you to find your custom dye in the Smart Setup or Channels tool.
6. Fill in other known parameters in the following sections, e.g. Providers, Properties, References.
7. Change to the Emission tab.
8. To fill in Wavelength (nm) and Spectrum value to the table on the right, you have 3 options:

• Type in data manually.
• Copy and paste data from e.g. an Excel sheet.
• Copy and paste data from a preset dye.