Features on Prepackager

Dear Experts,

We are trying to utilize the pre-packager option from SAP to make available the fiori applications offline on the mobile devices. However, we have certain queries on the below functionalities:

1. Offline - Earlier we had a challenge where only 4 offline stores would work in an application. Anything more than 4 would result in unpredictable behavior. Is this issue still present in the latest SDK's?
   
   
2. Push notification - We are still not clear if this is possible with pre-packager approach. Since the notifications are to be triggered from the backend system to SMP, could anyone guide us as to how this can be achieved

Thanks in advance!

Cheers,

Vigil George