Question: According to the Design and Reference Guide, it is possible to post adjustments using a form. How is this set up?

Answer

It is possible to use a data entry form to update the AdjInput member of the Origin dimension. This is achieved by setting the adjustment type on an account-by-account basis.
Each account member has an Adjustment Type property which gives control over whether the AdjInput Origin member will be populated using Journals or Data Entry Forms. This property can vary by scenario and time.