There are a few ways to quickly re-select notes:
1) Once you have selected the notes, you can group them into a separate channel (maximum 16 groups) or voice (max 3 groups), and then you can at any time re-select them with one or two clicks.
2) Since the kick notes under the snares have different velocities than the rest of the kick notes, you can select them by velocity, either in the piano roll or via the Event Filter.
3) If these notes are spaced in a regular pattern or in a regular position in their measures, you can select them via the Event Filter or the
"Pattern Selector" script.