Soap Execute

Hi Team,

Issue: while I am using Soap execute Snap i am facing Issue while customizing the envelop code/Input payload.

Customization required to payload:
Need to add an extra tag(DFF Value) for the Input file generated while i use soap execute after giving wsdl Url.

Is there any way I can customize the default schema generated by Soap execute Snap to accomodate additional fields.

If required any further information please let me know

Can anyone help me on this