On this release there's a new settings option on the group permissions under the "WO/ WR" tab; set "Allow auto-approval of WO reserved equipment" to "ON" and users on that user group will immediately see their full request approved after saving the work order.
As for the cancellation of movement, that can also now be done directly on the work order by the technicians. Simply click the "X" button for all items to be cancelled and save the work order – the move will be reversed.
New registrations will have the auto-approve permission set for users as default. Existing users need to go to the settings and explicitly turn that permission on.