Yes you can create your own Scratch Action Envelopes (SAE"s) and there is savable SAE preset menu.
See here...
There are 80 total ready to use SAE presets ranging from simple loops to complex multi stage scratches.
There are 117 additional user savable preset locations.
Then there is Init 1(Loop setup) and Init 2 (One Shot setup).
Then there is the copy location for quickly copying and pasting envelopes between SAE's.
Each SAE can have up to 200 break-points for creating really complex scratches.