You may link (add) a task to a requirement version in the requirements module. In the desired requirement's detail window, make sure you are in the correct requirement version. Click on the tasks icon on the right side vertical menu. Click on the New/Link button and select from the dropdown to link an already existing tasks or create a new task.
To link an existing task, click Link Xebrio Tasks and, in the following window, click on the desired tasks to select them. Click on Add to link them to the requirement version.
You can also create a new task and have it automatically linked to the version by clicking + New Task in the dropdown instead. Add a title and click Save. To edit the details of the task, click on the task ID to open the task details.
Users will need view and edit permissions in both tasks and requirements to perform this action. Depending on the user's project permission settings, they may be able to view all project tasks or just a subset of both. Watchers specifically added to the task will be able to view it.