You can mass edit multiple tests or steps using the Edit button in the Tests List view.
You can also mass-edit steps while working in the Steps tab of a manual test.
Note
You will need the Mass Edit permission to update multiple tests.
From the Test List
Hover over the Tests tab and select Test List.

Select the relevant tests, then click the Edit button.

Proceed to mass edit test level metadata or step level details.
Good to Know!
When you select all tests, all tests on the currently displayed page will be selected.
The selection made when switching between pages is not retained.
From the Test Tree
Hover the Tests tab and select the Test Tree.

Right-click on the project, cycle, folder, business process, or test, then select Mass Edit.

Proceed to mass edit test level metadata or step level details.
Mass Edit Test Level Metadata
The default option is Edit Tests - Use this option to modify the metadata for the Test level details
Select the fields you wish to edit with the corresponding new values

You can also select to Delete the current value for all selected activities

When done, click Update Entities
or
Select the Edit Steps tab to edit Step level details
Mass Edit Step Level Details
Select the Edit Steps tab to edit Step level details

If you select this option, read below about how to define specific criteria for step selection before editing
You can select all steps in the tests
or
You can define criteria for step selection and editing.
To do so, click on add criteria and define the fields and values
You can also select multiple values as shown below for the Test Status

Once complete, click on Define Fields
Now select what fields to modify and define the new values.

When done, select Update Entities
Tip
Click here to learn how to create a list of selected Tests that can later be mass-edited or assigned.
Note
If you select to assign multiple steps using this method:
All steps for the selected tests will be assigned to the selected tester
Planned runs for Quick Tests will be assigned to the selected tester
Good to Know!
Mass update of Tests and Steps statuses is not allowed.
Use manual run instead to pass multiple Steps in a Test activity - Use the Ctrl or Shift keys to multi-select steps.