To install Baseline X user can follow the steps below:
Access Atlassian Marketplace:
Log in to your Jira Cloud instance.
Navigate to Jira Settings.
Click on Apps.
Find Baseline X:
In the Atlassian Marketplace section, select "Find new Apps."
Type Baseline X in the search box.
Locate the BLX app.
Start Free Trial:
Click on the Baseline.
Press the Try it free button.
Then, click on Start free trial.