Command:
When you are ready to lock the files, click on the Lock button.
Unless otherwise specified, all files in the default changelist will be
locked.
Files:
Specifies which files will be locked. Choose between:
Lock files in changelist:
If you have more than one changelist pending when you run
the Lock command, a checkbox and a drop-down list of
currently-pending changelists will appear. To lock files
within a specific changelist, activate the checkbox and use
the drop-down menu to specify the desired changelist.
Lock files in //client-path:
Selected Files:
If you have any unlocked files open in the current directory,
you can specify whether or not to lock them individually.
To include or exclude individual files from locking,
click on the checkboxes for each file, and activate the
radio button for the Selected Files option.