someone from mikrotik please kindly provide responses

when using the services of a cable or ADSL Internet, ISPs see the mac-address from the pc, when I plug in to mikrotik then I must have more than one ethernet if you have more than one cable or ADSL VLAN functions can not work because the mac-address VLAN always follow the mac-address from the source...

can you add the feature to change mac-address on the VLAN interface in the ROS, such as change mac-address ethernet on the next version?

thanks