How can I add an attachment at item level in the F2179 “Manage Scheduling Agreement” app?

[m_a_r_c_o]

How can I add an attachment at item level in the F2179 “Manage Scheduling Agreement” app when creating a delivery schedule, similar to ME31L?

Currently it seems to me that you can only add an attachment to the delivery schedule at header level in Fiori. Whereas in ME31L/ME32L you can also add an attachment at item level.

Can anyone help me with this? Or are there other ways of adding attachments to a scheduling agreement at item level?

Best regards,
Marco