You can install RMsis by searching for it in Jira UPM or from the RMsis listing page at Atlassian Marketplace. The steps to do so are mentioned below.
Installation from Jira UPM
Log into your Jira instance as an admin.
...
A confirmation box will appear. Click on Start free trial to begin.
...
The app will be installed and a Success message will be displayed.
A trial license is automatically generated and added for RMsis. Click on Manage App to see license details.
...
You're all set! Click Close in the Installed and ready-to-go dialogGo to Apps > RMsis Home to access RMsis.
Note: Once the App is installed, a new RMsis Server will be deployed by Optimizory. It may take up to 24 hours for your instance to become available.
...
Installation from Atlassian Marketplace
You can also install RMsis in your Jira Cloud from the RMsis listing page in the Atlassian marketplace
Click on the Try it free button
...
The following pop-up will be displayed. Click on Start free trial to install RMsis and begin the trial.
...
If you are logged into your Atlassian account, you will see the following page. Click on Start free trial to begin.
...
If you are not logged in, you will see the following screen. Please log into your Atlassian account to proceed further.
...
The app will be installed. A trial license is automatically generated and added for RMsis. Click on Manage App to see license details.
...
You're all set! Go to Apps > RMsis Home to access RMsis.
Note: Once the App is installed, a new RMsis Server will be deployed by Optimizory. It may take up to 24 hours for your instance to become available.