Description of problem: When creating activation keys via hammer you can select subscriptions *and view them* via hammer commands but you cannot do the same with specific content selections. Here is an example command:

hammer activation-key content-override --id 2 --organization Customer --content-label rhel-7-server-satellite-tools-6.1-rpms --value 0

It appears this is an omission in functionality and since there *IS* the capability to do this in the GUI I suggest we add the omitted functionality to hammer. See the example in "Steps to Reproduce".

As far as it goes the process works but we're missing key functionality to maintain parity with the GUI.


Version-Release number of selected component (if applicable): whatever hammer is included in satellite release 6.1.6


How reproducible: 


Steps to Reproduce:
1. hammer activation-key create --name=ak_RHEL6_CV_Dev --organization Customer --content-view=RHEL6_CV --lifecycle-environment=Dev
2. hammer activation-key list --organization Customer
3. hammer activation-key add-subscription --id=2 --subscription-id=8af99c1e52c1cfc50152c6b495320153
4. hammer activation-key content-override --id 2 --organization Customer --content-label rhel-7-server-satellite-tools-6.1-rpms --value 0

Actual results:


Expected results:


Additional info: