Yes, you can. Smart Issue View for Confluence is designed to effortlessly handle such a transition. You don’t have to recreate already embedded issues. More importantly you don’t have reauthorise the plugin to be able to see the issues.

The procedure is very simple:

1. Go to your Confluence https://[your-account].atlassian.net/wiki/home

2. Choose Apps » Manage apps from the upper menu

3. Find Smart Jira Issue for Confluence LITE and expand it

4. Press Uninstall button and follow the instructions

5. Then, click the Apps dropdown again and choose Find new apps

6. Search for Smart issue view for Confluence and click on the app tile

7. Click Try it free to start installing your app