Autocomplete / List View Issues

I’m not sure if this is a bug, a feature request, a misconfiguration or just a misunderstanding on my end;

STEP ONE
1) Created a Post Type = Group
2) Added a Field = Group Members
3) Created a dummy test group = ‘group 1’

STEP TWO
4) Created a Post Type = Members
5) Added a Field = Members Of
6) Created 2 dummy test members = ‘member 1′ and member 2’
7) Connect Bi-directional Relationship Feed between ‘Groups’ and ‘Members’

STEP TWO
8) In the ‘group’ post type, ‘members’ field
9) Select ‘Additional Feed Options’
10) Selection Type = Multiple Select
11) Format = Autocomplete
12) Allow Add New = Yes ( I would like users to be able to add new users )
13) Allow Taggable = Yes
14) Update field and save pod.

At this point I have to say I was confused by the purpose of Allow Taggable as it seems that it would be exactly the same function as Allow Add New? I assume it means that you can add a New Item without clicking the Add New button….

STEP THREE
15) Edit dummy ‘group’
16) Edit ‘Members’ field
17) Type a bunch of gibberish like ‘hujfghhfgirfg’ and press enter
18) ‘hujfghhfgirfg’ is added to the field as a member
19) Update group
20) View ‘Members’ post types and a new member is created named ‘hujfghhfgirfg’

STEP FOUR
21) In the ‘group’ post type, ‘members’ field
22) Select ‘Additional Feed Options’
23) Allow Taggable = No
24) Update Field and save Pod

STEP FIVE
25) Edit dummy ‘group’
26) Edit ‘Members’ field
27) Type a bunch of gibberish like ‘yjsrgrty’ and press enter
28) ‘yjsrgrty’ is added to the field as a member
29) Update group
30) View ‘Members’ post types and a new member is created named ‘yjsrgrty’

Question – Can I make it so the only way to add new members is via the ‘add new’ button?

Question – Why did nothing change when I set ‘Allow Taggable’ to ‘No’?

Notes – I have a dummy ‘Member 1’ and if I edit the ‘group’ post type and add ‘Member 1’ in the members field, but then mistakenly type in ‘Mendere 1’ it also displays as an option to select, or, once again,it can be added using the enter button.

WORKAROUND
31) In the ‘group’ post type, ‘members’ field
32) Select ‘Additional Feed Options’
33) Change Format to ‘List View’ ( instead of autocomplete )
34) Allow Add New = Yes
35) Update Field and Save Pod
36) Edit dummy ‘group’
37) Edit ‘Members’ field
38) Type some gibberish, nothing is displayed or can be added by pressing enter but a new member can be used by clicking the ‘Add New’button (Good)
39) Try misspelling a word like ‘Mendere 1’ and same as step 38. (Good)

Question – How or why is autocomplete completing words that don’t exist?!

Problem – The ‘List View’ display format takes up too much space on the page with only one member per line, whereas the Autocomplete format is much more compact.

Problem 2 ( with both settings ) is the members are not shown in alphabetical order, and when there is over 5000 members to choose from there is simply no way to tell if I have to Add A new member or if I just did not see it in the selection!

Question – Is there a setting for ‘Unique Titles Only’?

After creating a dummy ‘Member 1’ I edit the ‘Group’ post type ‘Members’ field and typed in ‘Member 1’ update/save and now I have a duplicate of Member 1!