I have followed your steps - but come across an issue.
"If have/want 3 lists and you have a wp_role that has the values you use to isolate the members.
make sure you have first created a sample user with each role (else if there is no data in the user meta table, the plugin will not know about it)"
"if using wp roles, then you should see fields like
xx-capabilities-buyer appear in the field list (after "find fields")"
"then for each list in the configure page
1) put a column no (any number) in the display order for
xx-capabilities-buyer, UPdate. in view mode will see column with a '1' in it - don;t worry we can undisplay the column later"
Done (I gave them nice names first)
"2) go back to configure - now the row will be available. in the
xx-capabilities-buyer row, look to side - see the "include" field - enter a '1'. Update."
"Check only buyers showing on view."
No - all members still show in list (I rebuilt cache)
"3) go back to configure - remove the display order for xx-capabilities-buyer. Update
Row will still be available for configuration, but will not display."
Not done this yet because of problem above
REPEAT for other lists with other roles.