I'm interested in using the master emulator to connect to multiple target devices, but it does not appear there is support for this in the API (v2.1.3). For example, there doesn't seem to be a way to differentiate between devices, ie. handles, which would make delegate callbacks very challenging. It also mentions that it is not intended to create multiple instances of the master emulator object. Does this mean that there may only be one master emulator running one BLE target on each computer?