First time posting long time user.
I must admit i struggle with enroute. I am programming a simple base cabinet Left and ride sides. The bottom shelf is held in place with a 3/4" dado and top as well. I also want a 1/2" rabbet down the backside but deleted it from this file. I cannot use a 1/2" bit to make my program however i can use 1/4" bit. When i chose the 1/4" bit i can no longer router the rabbet. My big question is why cant i use the 1/2" bit to plow out the 3/4" dados? same is true for the rabbet, how come a 1/2" bit wont work on the 1/2" rabbet.

attached is the file- older version of enroute.

I would love to get some feedback on this, thanks in advance.