Instrument Track Default MIDI Input Question

[ibanman555]

This is kind of a two part question regarding using an Instrument Track in Pro Tools. I am using 11.3.1 but I believe this would be the case for many other current versions.

When I create a new instrument track, the view shows the input as "All" and the output assigns properly to the virtual instrument plugin I have assigned to that track. In the MIDI Studio Setup I have created devices, and I can select these devices as inputs on the instrument track. My question regarding this is, how to I set the default input to one of my midi devices and not "All"?

My second question is when a midi input is set to "all", and I record midi, I get duplicate notes. However, if I assign the input to one of my preset midi devices, I do not get the duplicate notes. Why does this happen and is there a way to have an instrument tracks input set to "all" and not have duplicate notes?

Thanks in advance for any insight.