ArchNemesis

Use the Idle Down function.   Set your throttle trim allllllll the way down.

Then set your Idle Down to a switch (In the main menu, you can assign that to any switch you choose, I use #1)  

Then in the Idle Down menu, you can set the value that starts the prop spinning.  I usually have it just a few clicks above that.

When you plug in your Batteries, if you're using fixed endpoints, your ESC won't initialize until you turn the Idle down OFF, and then when you turn it back on, the prop will start.  Works very well...

Let me know if this made sense.