How to let luci show Active DHCPv6 Leases

Installing and Using OpenWrt
1

I'm just using dnsmasq now. But before when I used dnsmasq-full, I can see Active DHCPv6 Leases in luci after uninstall odhcpd-ipv6only, because dnsmasq-full conflicts with odhcpd-ipv6only. And I'm sure devices get ipv6 addresses from DHCPv6, they have 2 GUA addresses.

/etc/config/dhcp:

config dnsmasq
        option domainneeded '1'
        option localise_queries '1'
        option rebind_protection '1'
        option rebind_localhost '1'
        option local '/lan/'
        option domain 'lan'
        option expandhosts '1'
        option cachesize '1000'
        option authoritative '1'
        option readethers '1'
        option leasefile '/tmp/dhcp.leases'
        option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
        option localservice '1'
        option ednspacket_max '1232'

config dhcp 'lan'
        option interface 'lan'
        option start '100'
        option limit '150'
        option leasetime '3h'
        option ra 'server'
        option dhcpv4 'server'
        option dhcpv6 'server'
        list ra_flags 'managed-config'
        list ra_flags 'other-config'

config dhcp 'wan'
        option interface 'wan'
        option ignore '1'

config dhcp 'lab'
        option interface 'lab'
        option start '50'
        option limit '200'
        option leasetime '3h'