No if possible, but it would be useful for the tutorial scenario and for the scenario divided into regions. :D
maybe "command_x (tool_text_label)". ;)
see this:
http://dwachs.github.io/simutrans-sqapi-doc/classlabel__x.html#a54a82cd7bbe9e98f649ba51da9849e1d
Return type description is false in the documentation. It is an error string (or null if everything worked).
Nice :thumbsup: .
(https://www.mediafire.com/convkey/8392/79895b3kmo7hw556g.jpg)