If you choose Positive Add lot x Two way orders
First lot x:
If you choose “Add lots by time”, Adding order is calculated based on the first order is the first order in time;
If you chose” Add lots by size “,Adding order is calculated based on the smallest order position.
Last lot x and last Add:
If you choose “Add lots by time”, Adding order is calculated based on the last order is the first order in time ;
If you chose” Add lots by size “,Adding order is calculated based on the biggest order position.