Please help me with codes to print this GSTIN

Sir/Madam please help me with the command to print this GSTIN in invoice.. I need Print command...


[#Part: LED Contact]
Add: Line: After: LED Contact: GSTIN

[Line: GSTIN]
Field: Short Prompt,GSTIN
Local: Field: Short Prompt: Set as: "GSTIN: "

[Field: GSTIN]
Use: Name Field
Storage : gstinx
set always: Yes
Width: 2 Inch
Max: 1000

[system : udf]
gstinx:string : 500

;Display in voucher ..............................

[#Part: VCHTitle2Left]
Add:Line:After:VCH Ref:GSTIN.
[Line: GSTIN.]
Add: Field: GSTIN.
Invisible: Not (@@Ispurchase Or @@IsSales)

[Field: GSTIN.]
Fields : Simple Prompt, Name Field
Local : Field : Simple Prompt: Set as : "GSTIN.: "
Local : Field : name Field : Set as : $gstinx:Ledger:$LedgerName
Local : Field : Default : Skip : Yes
Width : @@100%