As Ben says, there are new actions in the latest version (CB). So yes,
you can. More or less.
My setup for example is like that:
- Open book: touch as always
- Close book: touch on right upper corner of the book once
- Paging: swipe as always; forward additionally tab once on right lower corner
- Change font size of book: make one upward swipe in the book. This calls the zoom dialog
- Change CSS-file for fine grained font size altering: tab one in the lower left corner
- Zoom-In with panning funcion: tab once on the upper left corner. Alter zoom-level with double-tab or single tab. Leave zoom mode with X.
- Goto sleep mode: make one downward swipe in a book
What is missing?
Option-mode for books.
So I could alter PRS+-setup to do this say instead of the CSS-changing.
A.