Which feature does Guided Buying Capability with SAP Ariba Buying (2NV) support?

Editing a guided buying purchase requisition in SAP S/4HANA Cloud to add a new line item

Transfer of note texts and customer-specific fields in requisitions from SAP Ariba Buying to SAP S/4HANA Cloud

Supplier collaboration and request for proposals for lean services items in Ariba Guided Buying

Transfer of attachments at the header level of requests in Ariba