Regarding your Query 1 : for seeing the Alerts & Exception Items information / reports - "Application wise" which can be viewed through AES Reporting tab. Please find the reference screenshot below (highlighted in orange boxes) . Hope this information helps.
Regarding your Query 2: There is no OOTB Subscription (refined at Application level) available currently in AES to recieve email alerts specifically application wise. We might need to do some kind of customization in AES to achieve that. But would be a good enhancement if Product Team can consider this requirement.
We can wait for AES SME's to reply/clarify regarding Query 2.