At 14,15,16 SL is placed 12 pips below the Open Price:
0_1543594813930_93d0a820-08be-4c84-ba93-1ccb30ebddaa-image.png
That Open price appears to be the one from the original trade. You want it to be the one from the partial trade?
I'm not sure that I understand the second question. There is hard SL created by the trailing stop block and when that SL is hit, the trade is gone, I think that is normal.