New Changelist Dialog
Use this dialog box to create a new changelist.
Type the name of the new changelist.
Type optional comment. When the new changelist will be submitted to the repository, this comment will appear in the Comment text area of the Commit Changes dialog box.
Make this changelist active
Select this check box to have PhpStorm automatically give the active status to the new change list immediately after the changes are restored in it. When this checkbox is cleared, the current active changelist remains active.
Select this check box to have PhpStorm preserve the context of the task associated with the new changelist on its deactivation and restore the context when the changelist becomes active. See Managing tasks and contexts for details.