Send Signals to Collective2 via Email

Hi there,

I am trying to send signals to C2 via email. Below is my initial email signal.

BTO 12 AAPL @ 120.02 LIMIT GTC (stock)

Case1. - Fifteen minutes later, what command do I use to cancel the above signal?

Case 2. Fifteen minutes later, I would like to reverse my position when price hits 122.00 using limit order. There are two cases here 1) I am currently in a buy position or 2) I am not in a buy position.

Any feedback is greatly appreciated.