When you enter the Timewarp, Blend, or Colour Corrector editors from the EditDesk record timeline, a blue bar appears in the Player indicating the location of the segment in context of the entire timeline. This allows you to shuttle through the entire sequence and quickly return to the element you are currently working on. When the positioner is over the blue bar, you are monitoring the current element.

You can use the previous and next keyframe hotkeys from any menu in the editors to navigate between all keyframes on all channels. Use Ctrl+Z to go to the previous keyframe and Ctrl+X to go to the next keyframe in your animation. All the other Player navigation hotkeys are also available in these editors.