Routing cannot be a broken dotted
line. But the lines can be dotted.
When you are in the Add line
command use the ‘Line Font' in the options tab to change to dotted.
There are subclass where dotted
lines are not allowed in that case you will see the error message in the status
window as below
E- (SPMHGE-272): Line fonts other
than SOLID are not allowed on this class/subclass.