Delete one graph line

[DonL]

I've created a graph with too many lines. Is there an easy way to delete one or more lines from the graph in the Define Graphs/Manage Graphs tab. It's easy to add a line, I just want to delete one. The only way I can see is to delete the graph and start over. New user - could not find the answer in manual.

[wfpost]

you only need to select the empty field in the drop-down menu, then this line =sensor will be removed

[DonL]

Thanks very much. Did not notice the blank line at the top of the drop down list.