...

Now visualise the result of the Observation Filter and drop the supplied icons symbol_plotting and coast_dark into the plot window.

Scriptify it

Create a new Python Script icon, edit it and drop the Observation Filter (and rename the variable to t2m), coast_dark and symbol_plotting icons into the editor. Add the following plot command to the end of the script and run it:

mv.plot(coast_dark, t2m, symbol_plotting)