The only thing I forgot is that message boxes are hidden in Graph-On-Parent.
What else could be used? 

On Fri, Feb 23, 2018 at 2:10 PM, Csaba Láng <langcsaba@gmail.com> wrote:
Looks like a [send set ...( message makes the job via netsend to an empty message box.

On Fri, Feb 23, 2018 at 12:55 PM, Csaba Láng <langcsaba@gmail.com> wrote:
Dear list,

I would like to make an interface where there are messages written not in comments for the user if he/she makes something wrong, need hints etc.

How can I send it via network, and which element would accept messages with text to highlight?

Best,
Popesz