zoom script

[Gabriel - ud Carvalho]

Hi everybody,
I´m writing a script that allows the user to make zoom´s in the current
plot.
I use I/O functions and ´q pos´ to set the lat lon of the zoom.
the problem is: after I pull the new lat lon, I have to display (again) the
data that was on the plot.
This is making my script very big, cause I have specify various types of
data to do the zoom.

Is there some way just to set the new lat and lon and ´re-display´ the
existing data on the plot window?

thanks,
Gabriel Carvalho
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