What, exactly, are you trying to delete?
I created some customized output settings for afx, (like h.264/1.2 Mbit average, 3 Max and audio 41.000 kHz / mono).
Now, as I don't need them anymore, I would like to delete them from the available custom presets.
There is a Delete button in the Output Module Templates dialog box. In that dialog box, choose the output module tempate in the Settings menu and click Delete.
You could also delete the .aom file for the output module template.
How stupid! Maybe I need some new glasses... Thanks a lot.