Step by Step:

Work Order Types are used to define different types of work orders for jobs.  By default, Work Request is listed as a Work Order Type. You can create as many Work Order Types as you like. The Work Order Type will display in the Work Order grid in the Job and in the Work Order Search queue.

Step 1: Go to Administration > Job Costing > General Setup > Work Order Types.

Step 2: Click Add.

Step 3: Description - Enter the work order type.

Step 4: Is Default - Check this box if by default this flag should be assigned to work orders when they are created. 

Step 5: Click OK. 

 - You can now assign the type to a work order (Administration > Job Costing > Search Jobs > Open a job > Work Orders tab > Open a work order > Type field).