Valid commands are:
SELECT
This command will select a service for inclusion in the QWK packet
generation. A single service number or range of service numbers may
be entered.
DESELECT
This command will deselect a service or services. A single service
number may be entered or a range of service numbers may be entered.
A service number entered alone will toggle the selected status.
Examples of valid commands:
2 Toggles the selected status of service 2.
SELECT 1 Selects service number 1
SELECT 2-5 Selects service number 2 through 5
SELECT ALL Selects ALL services available