Use case,

I have 6 X55 Decos meshing WiFi across a space, I am using IP reservations so that certain types of devices stay within a certain ip range

Typically 192.168.1.2 - 192.168.1.99 I only use with DHCP reservations or static IP's and then everything 192.168.1.100 and after can be assigned at random.

Normally on any other router I will set the DHCP server to provide 192.168.1.100-199 to other clients, however if I do that the Deco app no longer allows me to create a new reservation for an ip outside of that range. So I have to change the DHCP server settings, create the reservation, then change the DHCP settings back. Minor bug, should be easily fixable.

Also, for a bonus, it would be nice if you could specify IP range for devices connected to the guest network, so that way I can have them be 192.168.1.200-220