The notes are already included in TM 9.2 SP02.
I suggest to create two schemas:
1. ZTOR_ITEM for the item, containing only the text type 0007 (and access sequence Z2). This schema must be attached to the node ITEM_TR of the BO //TOR in the same customizing cluster (=node "assign text schema to BO and node")
2. ZOTR_FU for the FU root, containing all other text types. This schema must be specified in the FU Type Customizing (!!).
For 1: the text determination will run thus for all TOR items (so not only for FU, but for freight order and booking items as well). However, the association BO_TRQ_ITEM works only for FU items. If you want to see the texts in FO/BO as well, you may use the association BO_TRQ_ITEM_ALL.