You can edit you shortcut preferences;
they are located in:
User/Library/Preferences/Adobe/AfterEffects/8.0/
and called
Adobe After Effects 8.0 Shortcuts.txt
make a backup of the file and change the settings you want;
“SwitchTo3DViewFirst” = “(F10)”
“SwitchTo3DViewB” = “(F11)”
“SwitchTo3DViewC” = “(F12)”
cya,
Jan