Here is a screen shot walkthrough.
Edit tool path info here
double click line to mark and this little box will pop up
single click the rest of the line to add in to the path by hitting the green plus. now repeat till all the desired content has paths
select passes tab and set sideways compension to center
uncheck all the lead in options and set pierce clearance to zero
there is the selected path green dot to red dot along the blue line.