When registering service invoice lines for service orders, you may want to register lines with standard texts, for example, to make a comment about the line above. The following procedure shows how to register text lines in the Service Item Worksheet window.
You can use the same procedure to register text lines in the Service Invoice Lines window by clicking Service Management, Orders, Order, Service Invoice Lines. Note that if the service order requires a link between service and service items, you have to select the Lines Not Item Related option in the Selection Filter field if you want the text lines to apply to the service order in general.
Open the 
Service Tasks window.
Click the line that includes the relevant service item and click Service Tasks, Item Worksheet.
In the lines, press F3 to enter a new service invoice line.
In the Type field, select Blank.
In the No. field, click the AssistButton 
to see the Standard Texts window. Select the relevant text, and then
click OK
to copy it to the field. The
program copies the description of the standard text into the
Description field.
Alternatively, you can also leave the No. field blank and enter the desired text in the Description field.
Repeat steps 3 to 5 for each text line you want to register.