Detect partially closed positions

Hi,

I'm creating a Position Manager that will implement Partial Closure after a certain amount of pips.

The problem i'm having is that there is no way to detect if a position has already been partially closed.

I had 3 different ideas but none of them seem to be implemented:

1- Check the realized commission or profit for the position, if it's > 0 then we know that i've already taken partial profit.

2- Modify comment to include a specific string that will indicate if it's already been partially closed

3- Directly find out if the position is full or partial

Any ideas?

thanks