Hi Jean-Francois,
You can't add fields exactly like that, but part of adding additional fields to your source is adding to the calculation at the end of DBk_WebViewerSource. Anything that's not a default DayBack field will need to be setup as an additional field and referenced in an event action as an additional field, like '[[fieldname]]'.
Step-by-step instructions on setting up additional fields can be found in the docs here:
https://www.seedcode.com/pmwiki/index.p ... onalFieldsIf you'd like help setting up additional fields in your file, or creating the tooltip calculations, we'd be happy to set up some time as part of an implementation package. Packages can be used for consulting, coaching, or modifications like these and start at blocks of 5 hrs for $190/hr. When the time comes, you can use this link and with a day or two notice we can schedule our first screen-sharing session:
http://sites.fastspring.com/seedcode/pr ... onpackagesRegards,
KC