Probably should be closed b/c this is working as designed for now.

Since it is not supported, the UI should not allow it, moving to DanC to get the UI updated to not allow this action.

yeah, will be cleaner to not show forms where you can't do anything. I'll show them again once we have the Nuage provider.

https://github.com/ManageIQ/manageiq/pull/8853

PR https://github.com/ManageIQ/manageiq/pull/8853 has been merged and backported to Darga.

New commit detected on ManageIQ/manageiq/master:
https://github.com/ManageIQ/manageiq/commit/bed2451e4bb3ac25966f521d5915f7239c35a7cf

commit bed2451e4bb3ac25966f521d5915f7239c35a7cf
Author:     Ladislav Smola <lsmola@redhat.com>
AuthorDate: Fri May 20 15:34:22 2016 +0200
Commit:     Ladislav Smola <lsmola@redhat.com>
CommitDate: Fri May 20 15:34:22 2016 +0200

    Hide create/update NetworkManager
    
    Hide create/update NetworkManager
    
    Fixes BZ:
    https://bugzilla.redhat.com/show_bug.cgi?id=1335848

 .../application_helper/toolbar/ems_network_center.rb       |  6 ------
 .../application_helper/toolbar/ems_networks_center.rb      | 14 --------------
 2 files changed, 20 deletions(-)

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://access.redhat.com/errata/RHBA-2016:1348