From:Multiple multi-select node reference fields To: node list in views that can be used as multi-select node reference

From: Multiple multi-select node reference fields (within a content type)
To: Node list in views that can be used as multi-select node reference (a new node reference field)

For example,

Type-A as holder for multi-select node references of Type-B, Type-C and Type-D content (and List-A)

I'm using a node references with "View used to select the nodes" and pass along the argument Type-B or Type-C or Type-D to return a list of content that is available.

This works well for the node reference multi select lists for Type B, C and D. They are populated with nodes of their type.

There is another multi-select node reference that I want to use within Type-A. We can call this "List-A"

List-A is meant to be another multi-select node reference, we want the selectable options to be generated in a view: "View used to select the nodes" List-A should contain the selected nodes from Type-B, Type-C, and Type-D. The List-A node reference would then be told to populate based on this view.

I have used

fields
-> field_related "Type-B"
-> field_related "Type-C"
-> field_related "Type-D"

that returns the right list.. however, it groups them all within a single 'fieldsets' output.
so the multi select for List-E shows
"Type-BcontentitemType-BcontentitemType-Ccontentitem"

have also used

relationship
-> Type-B
-> Type-C
-> Type-D

fields
-> Title: Type-B
-> Title: Type-C
-> Title: Type-D

Same issue as comment above before..

finally I tried

filters:
-> field_related "Type-B"
-> field_related "Type-C"
-> field_related "Type-D"
fields
-> title

This returns Node-A: title