When I create a new openshift application using Openshift Application wizard, the application creation fails.
If i choose a cartidge without knowing if it is scalable, my application is not created due to the following reasons.

1. I choose a cartridge, for example diy-0.1 and proceed to select the "Enable scaling " feature in the wizard. My app is not created as the cartiridge is not scalable.
Error message:
"Could not request https://openshift.redhat.com/broker/rest/domain/aakanksha/applications?include=cartridges: The cartridge 'diy-0.1' does not support being made scalable."

2. I choose a cartridge, for example haproxy-1.4 and proceed without selecting the "Enable scaling " feature in the wizard. My app is not created as the cartiridge is scalable.
Error message:
1]Error Message:
"Could not create application aakanksha
Could not request https://openshift.redhat.com/broker/rest/domain/aakanksha/applications?include=cartridges: haproxy-1.4 cannot be added to existing applications. It is automatically added when you create a scaling application."

Change requested:
Somewhere in the UI the "enable scaling" and the list of cartridges should be linked.
So If user selects a cartridge is not scalable and selects "Enable scaling" feature, the UI shows a warning sign.
OR
Once user selects "Enable scaling", only the list of cartridges that are scalable should be displayed in the UI and viceversa.