Android :: Setting Profiles Lite?

There's something I'm not getting about this app, so let me explain what I'd like to do:

From 8 to 8:30a.m., when I'm on my way to work, I want it to turn off wi-fi and turn the phone ringer to full volume. I got that one figured out.

At 8:30, I'd like the phone ringer to go back to normal and wi-fi to come on. Do I need to set up a timed profile for that, or does it automatically happen when 8:30 comes?

Then from 5 to 5:30pm, I want the same thing to happen as I drive home. I'm guessing I can use the same "action" as above, and set the timer for 5-5:30pm.

When I get home, I'd like wi-fi to be on and the ringer to be normal. Do I have to set up a special profile for that, too?

Then I'm wondering about "locations" and this may be a stupid question: let's say I get home early, at 5:15. Is it possible to have a profile set up that says, "when you sense our home wi-fi network, turn the wi-fi on and override the timed 5-5:30 rule above?" Or does the wi-fi need to be ALREADY on to sense our home wi-fi network channel?