It sounds to me as though the ‘pull down menu” to which you are referring is the Key Signature selection for your track overall.
(show below in Attachment 1)
The Circle of Fifths option used for changing and/or modifying chords is accessed by clicking on an existing chord in the track.
(show below in Attachment 2)
Works for me (with caveats). I’m using Mac OSX 10.8.5.
While the “E-Knob” setting was in ‘Linear Mode’,
I got parameter setting pop-ups only when in the “Edit Play Style” function (by clicking on the knob).
I got no response from the knobs on the instrument dropdowns on the Drum tab until I moved it to a new setting.
While the “E-Knob” setting was in ‘Relative Circular Mode’,
I got parameter setting pop-ups when in both the “Edit Play Style” function
and from the knobs on the instrument dropdowns on the Drum tab by clicking on the knob.
I found (regular) ‘Circular Mode’ unusable with a mouse.
You don’t say what DAW you’re using,
but I tested a multi-track MIDI file that I have by dragging it into Pro Tools 11,
Logic Pro X, EZKeys and EZDrummer2.
EZKeys, like Pro Tools and Logic, recognized each of the separate instruments within the file.
Pro Tools and Logic imported each of the separate instruments onto its own instrument track, if enough were available.
EZKeys prompted me to select which of the separate instruments to import into the EZKeys timeline. (shown below)
EZDrummer2 neither recognized separate instruments nor prompted for import of a specific instrument.
It imported the entire multi-track file. What a mess of drum-only cacophony!!
It seems you’d have to find a way split out the drums from your MIDI file for EZDrummer2 – like importing it into Pro Tools & Logic.
Hope this helps.
