Go to slide keyboard shortcut?

Not AFAIK, gave up asking for shortcut keys.

Some tips: label the slides, group them in logical groups which you can collapse in the Filmstrip for quick navigation to a group.

You can use the Branching view instead of the Filmstrip. If you have branching in the course, this will certainly help. There as well groups can be collapsed and expanded.

Another much unknown panel which I have open a lot of times is the Advanced Interaction panel. It has a lot of information in the way of a sheet, and is also linked dynamically with the Slides and Properties panel.