Best strategy to scan after atached?

[bierzorutas]

Hi everybody,
I am starting to play with this nice package, I have searched in examples and code and dont find the way to scan after been attached a sensor.
Let say I have many devices but only one stick: hr sensor and fitness sensor, scan for fitness and select one to attach it, after I would like to scan for hr devices but.. message error is returned mentioning "cant attach".
Is there any way to cover this use case?
Should I deatach fitness, save it´s ID, scan for HR and when select HR sensor and attach it, attach also fitness sensor in another channel?

Kind regards and thanks in advance