How do I delete presets for "Save as".
Please see the posting guidelines for this forum (we always need to know what OS you run Photo Mechanic on and what version of Photo Mechanic you're running, since it saves a lot of time answering questions.)
If you're on Mac OS X, hold down the Option key while you choose one of the snapshots and the Finder will come forward and open a window with that snapshot selected.
If you're on Windows, hold down the Shift key while you choose one of the snapshots and Windows Explorer will come forward and open a window with that snapshot selected.
From there you can copy/rename/delete the snapshots.
-Kirk