WRT1900ACS V2 - wifi interface 2,5GHz - wifi's DHCP - cannot set IP-window in the GUI

Hi!

Unfortunately I cannot find where to set up the DHCP's IP-range window in LEDE!
We definded some static leases already and everything works out fine.
Additionaly we have to define an IP-range now, but where?

Can somebody give me a hint where to look for it, because I cannot find it.

greets
habakuk

If you have the Web GUI, it's under Interfaces. You enter the starting number, and the number of leases.