J, K, L still work of course.
Holding down K and L or K and J allow for slow forward and slow backward.
Previous Frame and Next Frame Arrows still work as does Shift Arrow still moves 10 frames.
For excruciating detail you can use Command Arrow and move 1/80 of a frame.
If you're in the Event Browser Icon View, if you zoom in to 1/2s resolution, the Skimmer can be subframe accurate as well.