Time Machine

can someone tell me if i can set it to backup once a month??? i only see once a day or once a week....i dont need to back up that often. should i just set something in ical and then manually backup??

No, Time Machine is not configurable.

Supposedly there is a way with terminal to change the frequency of the time machine backups. Well that's what I've heard.

you can try something like this

click

my time machine doesn't even seem to be backing up. It wants to use my external as its back up source wants to clear everything off it first, is there a way to make back everything up on my mac hd?