[newbie] pico as background proc

[Irsan S. P. Siregar]

Hello,

How do you put a full screen program to run in the background?

With my shell account (FreeBSD w/ csh), I usually use Ctrl-Z,
and type bg 1 to put a background FTP session (telephone cost
a lot down here). How do you achieve the same thing with full
screen program like pico? pico said Ctrl-Z is not a known command.

Thanks in advance,
Irsan SPS