#12 cant generate multiple graphs

[michael]

Ok so im doing a project which requires that everytime
you hit a button another line is added to the graph.
The data comes from spectrometer but I need a way to
add an indeffinate amount of lines to the graph with
having to make a new LinePlot varible each time. First
I tryd just adding the same varible name to the graph
plot multiple times each time changing the data for the
line but each time i changed the data and then added it
the old line disappeared then I tried makeing a
lineplot array "LinePlot[] = new LinePlot[100];" but
that just wouldnt compile. How would you say I should
do this.