How can we add a new Transaction Type in Prime?

Tried in this but not working...............................

;;Default transaction types
[Field: DefaultTransType]

Use : Name Field
Storage : Transaction Type
Set as : If $$Line = 1 Then $$SysName:ATM Else +
If $$Line = 2 Then $$SysName:Cash Else +
If $$Line = 3 Then $$SysName:ChequeDD Else +
If $$Line = 4 Then $$SysName:Card Else +
If $$Line = 5 then $$SysName:ECS Else +
If $$Line = 6 Then $$SysName:ElectronicCheque Else +
If $$Line = 7 Then $$SysName:ElectronicDDPO Else +
If $$Line = 8 Then $$SysName:InterBankTransfer Else +
If $$Line = 9 Then $$SysName:SameBankTransfer Else $$SysName:Others