If it is just for reference, you should be able to add the UDT fields to a panel without a script.

Thanks for the reply Kevin. I did add the UDT, and UDF to the Sales Order Header. 

Now, after selection of the UDF, I also want to pop up other fields (also UDF) based on the selected item. Basically, pop up other attributes in the UDT of selected item.  Just like the sales order entry auto pops the Bill To and Ship To after user selects the customer.

Thanks for the reply Kevin. I did add the UDT, and UDF to the Sales Order Header. 

Now, after selection of the UDF, I also want to pop up other fields (also UDF) based on the selected item. Basically, pop up other attributes in the UDT of selected item.  Just like the sales order entry auto pops the Bill To and Ship To after user selects the customer.

UDF_MY_DESCRIPTION is a field in my UDT.  It becomes available as a read only field (not copied into the transaction, just a display) with the UDT validation for an SO Header UDF.