Export of tracks

Does this not work in Cubase Elements 6?

i see no option to export all tracks separately

although i want to mix in another program - i also tried mix down to cd - and the resulting file was not able to be read by a number of programs

.wav files stored do not include editing changes

Do i have to upgrade to full Cubase just to get this simple function?

If you are talking about Batch Export then yes, it is a feature only found in the full Cubase 6/6.5.

http://www.steinberg.net/en/products/cubase/specs_downloads/feature_comparison.html