After a lot of research, watching many inspiring YouTube videos, etc, I have come to the conclusion that the answer to this question is, "It is not possible to do it this way." The Spark software doesn't appear to have the ability to input or output on a single MIDI channel. Instead, it receives a broadcasting of notes. This is different than the V Collection software which may be configured for a specific channel and hence why this is probably confusing. It begs the question, "Why can I do this with the all of the synths in the V Collection but not with the drum machine?"
To solve this, a DAW is necessary. A MIDI instrument must be setup in the DAW. In doing so, one will create an instrument, drag or assign it to the Spark plugin, set the input to the Beatstep Pro and assign channel 10. By default, this matches the Drum sequencer on the Beatstep pro. Immediately, the Spark will be working only on the drum sequencer. The same set of steps may be followed to add a MIDI instrument controlled by the Beatstep Pro to the other MIDI channels (1, 2, or a custom value). When these steps are complete, the DAW will have isolated the instruments and the Beatstep pro will play them as expected.
