I am trying to create invoices in Zoho Books via Zapier.  I would like to have the option of selecting the invoice template, but I do not see that field available in the Zapier options.  Also, I do not see the option for the "Order Number" field in Zapier as well.  Am I doing something that is not allowing me to see these fields, or are they not available?  If not available, how difficult is it to add this to the Zapier integration for creating new invoices via Zapier?

Thank You!