I am aware of how to validate an app for SplunkCloud. I have done it a few times.
Splunk Support indicated that this (answers.splunk.com) is exactly the place to make requests to enhance an app for things like Splunk Cloud compliance.
I could customize the app and make it SplunkCloud compatible, but then it would be branched I would no longer be able to use "update" feature to update it when an update becomes available from the developer.
If you believe there is another better place for this kind of request, please let me know what that is. I'd be happy to learn of a better / more appropriate path to make requests like this.