Android : Trying to create mobileapp store using WSO2 ES

I am trying to create a Mobile App store using WSO2 ES.I am able to host it on a PC and access from another, register user , login as user, login as admin and download "ebook" assets on my smartphone from the store. I have been able to publish a "mobileapp" asset on the publisher URL(https://192.xxx.xx.xx:9443/publisher). All is good till here but I do not know how I can actually upload my app(.apk file) on the server. I also cannot see "mobileapp" section in the store URL(http://192.xxx.xx.xx:9763/store).I think I am missing something from the official documentation.It would be helpful if somebody could just point out what steps I need to do in order to solve this.