If you’re in ‘VLANs’ mode (rather than’Single VLAN’) then you should be able to do it through the Addressing & VLANs page by editing the port. In single VLAN mode I don’t believe it’s possible - one of those oddities.   EDIT: you may need to use this link for mapping of template ports to the actual model, https://documentation.meraki.com/MX/Other_Topics/MX_Cold_Swap_Replacing_an_Existing_MX_with_a_Different_MX#Port_Mapping_for_different_MXs_models  ... View more