[Motorola] can a 2-channel HT-1000 be expanded?

[JEFFREY MICHAEL KENYON]

Hi everyone, I have some HT-100s that are 2-channel, and I am wondering if
they can expanded to either 8 or 16 channels, and if so how do I do
that?  Also, can an HT-600 be  xpanded, and if so how much in terms of
channels?  Any help would be appreciated, and thanks in advance.