Check out the Rocky Trim Router in use. This is a great Demo.
https://www.hvalleytools.com/product/...

Trim routers are a very handy tool to have in the shop, in part because they’re so easy to handle with one hand. This instructional video teaches you how to use a flush trim router bit, a V-bit for free-hand sign making, and a roman ogee bit. All of these cutters can be easily used in a trim router.