Instant order script with stop-loss and trailing stop

So if I want to make order with 40SL and 80TP I want to change that Take-profit to Trailing stop. When pips reached 80pips I want that script actives trailing stop but if I have for instance 20 trailing step I dont want to that when trailing stop turn on it can go back to 60pips.

 For example:

1 I have Stop-loss 50 and Trailing stop 100 with 20 steps.

2 When my order reached to 100 pips it actives trailing stop.

3 If price starts going to down or reach 101-120 pips but came back to 100 EA close order automatically.

4 When trailing stop reached over than 120 pips it starts moving normally. 

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