My apologies. I have issues with every drawing I open or create, to varying degrees. In this example, most components have editable description fields. the multiple occurrences of the "1x6x84" are not editable. It is an external link and if I open that external model, the description is not editable there, either. Below is the data.p info from this MRO C-7 XXX model.
data.property
------ Hub Info ------
Hub Id: generalpallets
Space Collection: co.klwDSwALRHO8yN69nKSlzQ
Tenant Id: 14636925
Hub Root Folder: urn:adsk.wipprod:fs.folder:co.c4kaq-PbSY2_dLX_gYwhMw
Hub Url: https://generalpallets.autodesk360.com
FCE Id: urn:adsk.fusion:scope:8af3daca-6a04-4c63-808a-b52e01abedab
Forge Id: a.YnVzaW5lc3M6Z2VuZXJhbHBhbGxldHM
Owner Id: N2RNJED2PKE7
Entitlement Type: SUBSCRIPTION
Hub data version: 2.0.0
Opt in Status: enabled
Is client compatible: true
------ Current Doc Info ------
Doc Display Name: MRO C-7 50x84x9
Lineage Urn: urn:adsk.wipprod:dm.lineage:-vBbVd0kScewJdLO1nvUEg
Version Urn: urn:adsk.wipprod:fs.file:vf.-vBbVd0kScewJdLO1nvUEg?version=5
Parent Folder Urn: urn:adsk.wipprod:fs.folder:co.KVNrInqHTYiBqvrqk_EU2g
------ PIM properties ------
Version Snapshot: fmyPGULwYKvNMiq3bWUFb0
Root Product: 509cnR5wQ50lO0R7XWW0lf_aga
------ Custom properties ------
DesignModelRevisionID: 6f236e6b-9db1-4947-aed7-a17e324f7e4f
thumbnailStatus: REGISTERED
EIPContext: {}
------ No custom flags!