In Oracle Solaris OpenStack Havana, we have customized the Horizon BUI by modifying existing dashboard and panels to reflect only those features that we support. The modification mostly involves:

 --  disabling an widget (checkbox, button, textarea, and so on)
 --  removal of a tab from a panel
--  removal of options from pull-down menus

The following table lists the customizations that we have made.

|-----------------------------+-----------------------------------------------------|

| Where                       | What                                                |

|-----------------------------+-----------------------------------------------------|

| Project => Instances =>     | Post-Creation tab is removed.                       |

| Launch Instance             |                                                     |

|                             |                                                     |

| Project => Instances =>     | Security Groups tab is removed.                     |

| Actions => Edit Instance    |                                                     |

|                             |                                                     |

| Project => Instances =>     | Console tab is removed.                             |

| Instance Name               |                                                     |

|                             |                                                     |

| Project => Instances =>     | Following actions Console, Edit Security Groups,    |

| Actions                     | Pause Instance, Suspend Instance, Resize Instance,  |

|                             | Rebuild Instance, and Migrate Instance are removed. |

|                             |                                                     |

| Project =>                  | Security Groups tab is removed.                     |

| Access and Security         |                                                     |

|                             |                                                     |

| Project =>                  | Create Volume action is removed.                    |

| Images and Snapshots =>     |                                                     |

| Images => Actions           |                                                     |

|                             |                                                     |

| Project => Networks =>      | Admin State is disabled and its value is always     |

| Create Network              | true.                                               |

|                             |                                                     |

| Project => Networks =>      | Disable Gateway checkbox is disabled, and its       |

| Create Network =>           | value is always false.                              |

| Subnet                      |                                                     |

|                             |                                                     |

| Project => Networks =>      | Allocation Pools and Host Routes text area are      |

| Create Network =>           | disabled.                                      |

| Subnet Detail               |                                                     |

|                             |                                                     |

| Project => Networks =>      | Edit Subnet action is removed.                      |

| Network Name => Subnet =>   |                                                     |

| Actions                     |                                                     |

|                             |                                                     |

| Project => Networks =>      | Edit Port action is removed.                        |

| Network Name => Ports =>    |                                                     |

| Actions                     |                                                     |

|                             |                                                     |

| Admin => Instnaces =>       | Following actions Console, Pause Instance,          |

| Actions                     | Suspend Instance, and Migrate Instance are removed. |

|                             |                                                     |

| Admin => Networks =>        | Edit Network action is removed                      |

| Actions                     |                                                     |

|                             |                                                     |

| Admin => Networks =>         | Edit Subnet action is removed                       |

| Subnets => Actions          |                                                     |

|                             |                                                     |

| Admin => Networks =>         | Edit Port action is removed                         |

| Ports => Actions            |                                                     |

|                             |                                                     |

| Admin => Networks =>         | Admin State and Shared check box are disabled.      |

| Create Network              | Network's Admin State is always true, and Shared is |

|                             | always false.                                       |

|                             |                                                     |

| Admin => Networks =>        | Admin State check box is disabled and its value     |

| Network Name => Create Port | is always true.                                     |

|-----------------------------+-----------------------------------------------------|