Then select sensor , signal , channel and parameter
from the Param pulldown menu in the igr client.
Then position the mouse cursor in the middle of panel 0 and press the right mouse button,
or press the Update in the ISDAT time manager ctm.
Now you ought to have a some data plotted in your window.
You should now be able to change the time in the ISDAT ctm time manger.
The mouse cursor must (usually) be inside the line you are writing.
Then after changing the time, press the Update button in ctm .
The igr client might start with a plot in the window.
The reason for this is: If a file init.igr exists in your $HOME directory,
igr reads the previous configuration from this file.