Effectively dispatch is not very documented, but the actions are quite simple to understand and configure because they are all pre-created.
for free text windows you have to use the command "Edit area" store are contained in a temporary variable, then re-inject it into the data card variable with "Set map variables"
To retrieve or archive the easiest way is to use this: %PathToSelectedFile%
For the editing area, you need to define an environment variable and then a variable of the "Static String" type which allows you to retrieve this manual entry. Then you have to use the "set card variables" function to inject the result into the card variable.
The roughly ordered order should look like the attached capture.
Have you finally managed to create a Dispatch action that allows you to fill in several files in bulk, i.e. at once without having to fill in the field for each selected file ?
I'm trying to do the same thing but I don't see how to program the action...