I couldn't find the way to use windows in terminal applications, like is
available in others products.
The idea is open a window at the same screen, display a message or
execute a READ command and after close the windows, keeping the content
of the original screen.
See the answer from Sanchez's support:
"GT.M does not have this capability built in. You will need to call
functions in an appropriate library. Since GT.M makes it easy to call
C functions from M, you can use a wide spectrum of libraries that
provide this capability. You could also look into M packages from
Lastic GUI or CyberTools".
Can anybody help me about using this?