Standalone player- possible to jump ahead to certain points?

It appears the standalone player will only play from beginning to end. With the only possibility to skip ahead being to manually click forward slide by slide. On a 90 minute video, that is difficult.
The reason I ask is, sometimes I get lag on the standalone player, or a freeze. In that case, I would like to be able to start the standalone player for example from the halfway point of a 90 minute presentation, instead of having to start from the beginning all over again.

Currently it is not possible to start the slideshow at a certain point. However you can add Chapter Markers in your slideshow (control click on the first slide of a chapter and select “Add Chapter”) and jump to them with the left/right cursor keys while holding down the alt key.