.....You can calculate ETP EO then PNR EO on the SEC PLN by entering Mach,
levels and wind then use the SIAS method. Shouldn't take more than 5 mins
each if your initial guesstimation isn't far off the mark. You can then enter a
time marker for each on the PRI PLN and/or annotate 'em on your CFP.
The ETP thingy on the 320 box is AEO.