Hey there, this is technically med-long-term, because it will most likely be in a release after Auto quantize is implemented, that is when we are planning to release an update with more MIDI commands. That being said, there has been a lot of interest in this command so we may reconsider that timeline.
However, because of the fluid nature of SD card usage, a system may not be so simple to implement, along with an adequate UX. Currently, we are more focused on standalone capabilities like Locking tracks and Auto Quantize, as well as a simple hands-free enhancement. Not to mention finishing up the current in progress release! We understand you and other users really want this feature, but we can only do so much at once.
On another note, I’d like to reference here that this update to the Aeros for song selection will most likely incorporate this closely related request for the BeatBuddy to open a specific song on the Aeros. Stay tuned.