Maybe I just imagined the existence of a “previous/next” point selection shortcut. But yeah – using the Structure Manager could be useful. More useful than the Keyboard Shortcuts list in the Maxon Help being an image (instead of text), therefore completely unsearchable!
C4D’s inconsistency in how up/down arrow keys do stuff is a bit annoying*. If I’m in the Structure Manager, I can click on a point, then if I hit the up/down key, it highlights the various coordinates, but it’s impossible to arrow-key over to the Point Number, therefore not possible to use that shortcut to select another point! I have do it ye old fashioned way, and click on the Point number.
*and sometime, going up/down will select stuff in the Object Manager, and sometimes it’ll move a point around in the view.