Using a pending order to partialy close out an order.

How do I set a pending order to close out 1/2 of a position at a set level. I know I can do this with an instant execution, but would like to be able to do this as a pending order.

Rusty

Why not submit two pendings (each w/ 1/2 of the lots of a single, larger order) and then use a smaller TP for the 2nd order.

I could do that, but sometimes time is of the essance, and I will probably forget