How do you add header text to RFQ Form

SAP experts delight help,

I americium trying to adhd RFQ header texts to the output form. I person seen the question beneath which is adjuvant and I person added this BADI MM_PUR_S4_RFQ_MODIFY_PRINT_HDR however erstwhile I download the signifier template I cannot spot the the caller field. I fishy I americium missing a step, perchance adding codification to the customized logic.

Can anyone help? 

https://community.sap.com/t5/enterprise-resource-planning-q-a/rfq-form-doesn-t-provide-the-required-...