you only have one posistion btw- you just adjust amount of borrowing and amount of collateral within that same interface - so if, in the example you are giving of mooning and borrowing more, you you just borrow more and/or adjust collateral accordingly.on a lot of sites you can do margin calls in a much more traditional manner though if that's something you want to risk and get into - really not recommened though for new traders though lol. Bitshares give you a very simplifed intro to that, which nice for learning the terms of what you are actually getting into
