Bug 1394054

Description of problem: Within appliance_console, when user is at the "Advanced Setting" section, the user is given a list of options (1-23) and a prompt "--press enter/return to continue or q to stop --".  User must press enter before they can enter a number, which feels counter intuitive.  Also the 23rd option is Quit, so I am confused why entering 'q' is necessary to exit the appliance_console in the first place.  

If the user inputs anything else, the user is unable to delete the input.  Once any invalid input is entered, the following is outputted:

~~~
Ambiguous choice.  Please choose one of [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, Set DHCP Network Configuration, Set Static Network Configuration, Test Network Configuration, Set Hostname, Set Timezone, Set Date and Time, Restore Database From Backup, Configure Database, Configure Database Replication, Configure Database Maintenance, Logfile Configuration, Configure Application Database Failover Monitor, Extend Temporary
Storage, Configure External Authentication (httpd), Update External Authentication Options, Generate Custom Encryption Key, Harden Appliance Using SCAP Configuration, Stop EVM Server Processes, Start EVM Server Processes, Restart Appliance, Shut Down Appliance, Summary Information, Quit].
?
~~~

Which appears unorganized to the user.

Version-Release number of selected component (if applicable):
CFME 5.7.0.10-beta3.20161109111947_9a61b18

How reproducible:
Always

Steps to Reproduce:
1. 
2.
3.

Actual results: User must hit enter first before they can input a selection.  If the wrong selection is chosen, an unorganized response is returned to the user.


Expected results: User should be able to enter their selection immediately when the Advanced Setting options are displayed.  When user enters incorrect input, an error message should be displayed, but the original prompt of options should be left instead of the garbled response that is displayed.


Additional info: