...
Installing directly from Atlassian Marketplace
You can install Knowledge Base Searcher directly Multi-Space KB Searcher directly from the Atlassian Marketplace. For more information, see Atlassian documentation on installing add-ons.
...
Installing by file upload
- Download the Knowledge the Multi-Space Knowledge Base Searcher file from the Atlassian Marketplace.
- Log into your Jira / Confluence as Admin.
- Go to he apps section in the Administration:
- For Jira, go to Administration > Manage Apps.
- For Confluence, go to Administration > Add-ons.
- Click Upload app, select the file you downloaded, and click Upload.
...