This is high priority for the UI - having a correct default deployment plan is central to the UI experience for both OSP 9 and OSP 10.
We have run into some bugs already; see - https://bugs.launchpad.net/tripleo-common/+bug/1612664
I would like to see this being comprehensively tested.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHEA-2016-2948.html