Linksys EA7500 - vlan

Hi,
i use Linksys EA7500 v2.
Firmware Version : OpenWrt SNAPSHOT r14439-fb22f4ae3a / LuCI Master git-20.244.43974-4b8d4ba

I would like to use GUI to manage vlan but nothing appears in network menu.

i use with nginx ( before uhttp) nothing change.

in /etc/config/network i have :
config switch
option name 'switch0'
option reset '1'
option enable_vlan '1'

config switch_vlan
option device 'switch0'
option vlan '1'
option vid '1'
option ports '0t 2 3 5'

i reboot many time

i also follow this

nothing works

can you help me ?

Thanks,

I'm no expert but as snapshots use Linux kernel 5.4 and EA7500 v2 is a MT7621 device:
https://openwrt.org/docs/techref/hardware/switch

DSA support will be introduced along with kernel 5.4 support, but there is no full feature parity with swconfig yet as of writing (2020-05-12). Changing VLAN tags is not supported yet at the moment.