In Automation 360 Trial version does not show the other options for Administration

You can add the new package by using the import option,

How to Download a Bot Store Package into Your A2019 ...

https://docs.automationanywhere.com/bundle/enterprise-v2019/page/enterprise-cloud/topics/control-room/working-with-bot-store/cloud-add-bots-to-private-repo.html

https://docs.automationanywhere.com/bundle/enterprise-v2019/page/enterprise-cloud/topics/control-room/packages/cloud-add-package-control-room.html

Hey Salvarez - @Tamil Arasu​ explained the process of importing bots from bot store...technically if you download them as a zip, you can import them as bots and the packages will be included. I'd also suggest sticking to Community Edition instead of Trial...there's really little benefit of the trial over CE, and its only good for 30 days...where as CE bots/projects can be used well beyond 30 days and still afford you the same capabilities for bot/package imports