Basically it is all about slots and edges:
ClickedyEdges can be modified by using those bits with a bearing. Simple move the bearing along the edge. The table is good for small pieces and when edges are trimmed.
Slots are more precise and accurate when using a router. For this I recommend some kind of jig build to make for the specified slot or at least some "stoppers" and a guiding block.
I have a 3" x 1" x 30" wood (shelf) to use as a guide for all kind of machines. I have written all the distances between the tool and the stop, so I can easily mark all my positions. Some smaller stops do complete the set.
Try it on some plywood. Use a ear protection and be careful - this can ruin your day as it is a much more powerful tool than a scroll saw!
regards
Torsten