I assume the static IPs are on your local network - 192.168.0.X.
You can define the address range that the DHCP server in the router uses when allocating IP addresses- just click on Lan IP setup and adjust the start or end IP address to give you a few spare IPs and use those for your PCs that require a fixed IP address.
The default start is 192.168.0.2 and end is 192.168.0.254. Just change the start to say 192.168.0.10 which leaves you free to use 192.168.0.2 -> 192.168.0.9 for static IP addresses on your local network which you then configure any PC to use. Also remember to configure the default route and DNS servers on the PCs with static IP addresses.
If that is not what you are asking can you give more detals about exactly what you are trying to do and why you need the static IP addresses?