Right now, I can only return true (success) and false (fail), which will show pre-defined messages to the user.
It would be great, if I could return a string to show a custom message.
I know, that I can show messages right now, but there is still an unnecessary success-/fail-message afterwards.
This will be implemented as an mandatory parameter you can set via host.ReturnMessage.
Each script must still return a bool to indicate wheter it executed OK or not.
The custom message will be shown no matter if true or false is returned so you can customize it for error-messages as well as ok-messages.