Ok, so a couple of things that came up during tonight's game.
First, you are under the environment condition that gates can be closed but not sealed. You emerge from a gate but elect not to close it at that time in the hopes the environment will change and you can seal it after a mythos round or two. So, instead of moving away and losing your explored marker, you hang around the location. Do you continue to have encounters at that location? If so, what happens if 'a gate and monster appear' at that location? Is that treated like a monster surge?
Second, if you have a unique item that has a counter on it, such as the 'Silver Key', can you trade it? And if you do trade it what happens to the counters? We played that you could trade it and that the counters just went with it.
Thanks!