Haven't usdd cam bam for many years so can't be specific-

General process for any CAM is

Select geometry - the lines which form the shape to cut
Select MOP (machining operation) profile drill pocket etc
For profile select inside the line, outside the line, or on the line
Select depth to go down to
Select tool to use - 6mm end mill etc
Create gcode for that MOP - text file
Repeat for all geometry
Open text file in Mach3 or other software and start cycle

If cambam is still defeating you then Vectric Cut2D for about £100 is very simple to use with a more logical graphical user interface. Arguably slightly less capable than cambam (no rough pass option which I seem to remember Cambam has for example)