Q. How can I get past the warning about labors not being assigned to technicians?
Assuming you do not want to track tech hours through productivity reports or payroll, there is an option to turn off this warning. Click on Setups, then Repair Orders and Parts Invoices, then RO Setup on the left. The last checkbox in the first column that says "Warn if no techs are assigned to a labor" should be unchecked.