Press Q/W or Numpad 7/8 to move the play cursor to the previous or next marker event, or to the previous or next edge of the segment selection, punch or loop ranges, whichever comes first. Press Alt+J/K/L to set the segment, punch and loop ranges to the two marker events surrounding the play cursor position. These ranges can also be set with the marker event context menu
from the Podium Guide on the wiki.
the mouse scroll is very cool. i still like the option of a pop up menu though.