Documentation for custom fields in Windows Posted November 15, 2020 @Gabor Did you purposefully insert the code as an image, so we couldn't copy and paste it to reuse in your scripts? Retyping the whole thing can lead to mistakes and the script not executing correctly. Also, the article needs more practical examples on how to use the Custom Fields and the Custom Variables. I would like to do a check if an app is installed , update a Custom Variable and then use it in a Custom Field. It is really unclear at this point.