For those who miss PageDown/Up in TM2 here's simple workaround to put into ~/Library/KeyBindings/DefaultKeyBinding.dict Instead of:
"\UF72C" = "pageUp:"; "\UF72D" = "pageDown:";
Which triggers "pageUp/Down:" selectors that do not respond in TM2, put:
"\UF72C" = ("moveUp:", ..., "moveUp:"); "\UF72D" = ("moveDown:", ..., "moveDown:");
Where ... means = put it as many times as many lines you want to jump on page up/down.
Have a nice Xmas,