Hello Branden,
When you set "Trade symbol Multiple times" to 'No' , Ea will still open 3 trades for 3tps signal (Because it is the same signal). You can ask ea to open only TP3 order by setting all other TP_Percentages to 0% and in your case add custom Points to be (e.g 100points) (Please see image).
Alternatively, you can set a small percentage for tp1 (0.01 lots) so that ea will move sl when TP1 hits (a small percentage of the orders will be closed)
