Need Text Mode Help with Document Version Report Filtering on Task Custom Field

I'm hoping some of the Text Mode experts can assist here.

I have a document version report that is pulling a Task level custom field into a column with some formatting.

I ultimately need to write the Text Mode for this Task custom field to use as a custom prompt on this report, but I understand that the easiest way is to create the filter, then copy that as one-line into the custom prompt.

Here is my column text mode:
displayname=Proof Designation
linkedname=document
namekey=view.relatedcolumn
namekeyargkey.0=document
namekeyargkey.1=taskID
querysort=document:task:DE:Proof Designation
styledef.case.0.comparison.icon=false
styledef.case.0.comparison.leftmethod=document:task:DE:Proof Designation
styledef.case.0.comparison.lefttext=document:task:DE:Proof Designation
styledef.case.0.comparison.operator=in
styledef.case.0.comparison.operatortype=string
styledef.case.0.comparison.righttext=84.51 Internal KCS Internal Promo Execution Internal
styledef.case.0.comparison.trueproperty.0.name=bgcolor
styledef.case.0.comparison.trueproperty.0.value=def6e2
styledef.case.0.comparison.truetext=
styledef.case.1.comparison.icon=false
styledef.case.1.comparison.leftmethod=document:task:DE:Proof Designation
styledef.case.1.comparison.lefttext=document:task:DE:Proof Designation
styledef.case.1.comparison.operator=in
styledef.case.1.comparison.operatortype=string
styledef.case.1.comparison.righttext=84.51 External KCS External Promo Execution External
styledef.case.1.comparison.trueproperty.0.name=bgcolor
styledef.case.1.comparison.trueproperty.0.value=eac6c9
styledef.case.1.comparison.truetext=
textmode=true
valuefield=document:task:DE:Proof Designation
valueformat=HTML

I found this article:Filtering Task Status in a Document Version Report, and feel I am very close with this text mode filter:
EXISTS:A:$$OBJCODE=DOCU
EXISTS:A:DE:Proof Designation=KCS External
EXISTS:A:DE:Proof Designation_Mod=eq
EXISTS:A:ID=FIELD:documentID
document:taskID_Mod=notblank
enteredByID=[my user ID]
enteredByID_Mod=in
isCurrentVersion=true
isCurrentVersion_Mod=eq
proofName_Mod=notblank