Hi,
There is no such option or setting to activate procurement document function for sales quotation.
Its available only for sales order. In general, after we receive customer purchase order, then sales order become official document and from their we can create purchase order to fulfill customer requirement.
So there is no such requirement in sales quotation. Quotations is not considered as official document for sales process.
Hope you understand the standard business process.
Thanks & Regards,
Nagarajan