In order to change the Dimension Order, if you are a Feng Sky user you ought to contact support@fengoffice.com so that we can do it on your behalf.
However, if you are a Community user or an OnSite user, you may do as following, but of course, subscribed users may contact us as well.
i.e.:
UPDATE `fo_dimensions` SET `default_order` = '-12' WHERE `fo_dimensions`.`code` = "workspaces";