sorting order WITHIN Contacts fields

the 'dropdown menu' alongside each email, telephone line, etc...does not change the ORDER of the field(i cannot slide that field up/down). the blue up/down arrows that are between the field label and the field telephone number(/email etc), only allow me to change the label or name of the telephone line already inserted on that field line number. i cannot actually move/change the field order. (i do find this confusing, since in many other applications, the presence of the 'up/down' arrow typically allows for one to physically move the order of that field, up or down (only if there are more than one fields actually filled in). in my case here, in Contacts(Catalina 10.15.3), the blue up/down arrows only permit me to open the label dialogue box.