Did you create an operation that actually generated a toolpath visible in the view? For example, the spiral operation will produce a toolpath that appears as such:
If you're not seeing any toolpath in the view after creating an operation then you need to carefully consider the parameters you're using for the operation to generate a toolpath with, because it's not impossible to cause an operation to generate zero cut paths - which will in turn generate zero useful G-code.
EDIT: It would be tremendously helpful for us to get you on track to generating useful G-code if you could provide more details as the provided User Guide explains. Step-by-step instructions for reproducing the problem and the generated log-file are invaluable for getting to the bottom of problems such as this.