Nope, I use group 3 for player and 4 for platforms.

Everything works pretty nice at the moment.
When I stand on the platform, I add it's velocity as a global vector to player's movement, like this:
Z - adaptation isn't needed, as it's made by gravity, and anyway, platforms don't move in Z direction, only X or Y.
This is just a idea of how I make player move with the platform, it's framerate independent in script (not as in example).
Thing is, that when player falls down from the platform, it tries to move throw him, and starts moving upwards (cause of capsule hull).

Edit: I didn't really understand, what you've mean by moving them manually.. I already to move them manually, do I?