• Up, Down: Scroll
  • PgUp, PgDn: Scroll
  • Tab: Cycle through hyperlinks. With Shift, cycle backwards.
  • Enter: Follow links
  • B, Backspace: Back to previous position (undo follow links)
  • G: Go to page. Pages are identified by a name in PCC2 (not a number, like in PCC 1.x).

Reference

Keys:
AltH or H almost everywhere
This is a testing version.
It may be incomplete, and have more bugs (or features) than the public live version at planetscentral.com.