If you select tight trailing stops to be true it will close the trade after the amount of pips selected in ScalpPips. This is for setting a TP lower than what your broker will allow.

When you want to setup a trailing stop, you will have to change UseTrailing to true. Then the TrailingAct is the activation point where the trailing stop starts to trail. For example, if i want my trailing stop to kick in only after there has been a 10 pip increase in my position, I would set the TrailingAct to 10 (or 10 pips). The TrailingStep (which I should probably rename) is the amount of pips will trail the highest point in the open position. In short, if you want a traditional trailing stop, just set the TrailingAct to 0 and the TrailingStep to the amount you would like to trail by. I hope this helps.

Nic