hedge mode using the binance api and multiple positions

I successfully placed a buy order using the api, now my query is how one can place a brief order with out exiting the last buy order? :/

I imply how do I specify that I'm opening a brand new position and never exiting the last one?

and when each are open successfully, how do I specify which one I'm closing?

I need to understand how to do that using the api.

If my submit doesn't belong here, please let me know and I'll delete it.