Absolutley, you can set a static lease by adding an entry to the DHCP leases for the specific MAC address of the device.
An easy way to do this is to let the device pick up a dynamic IP addressfrom the pool, open up the dynamic entry and click on make static. Then you can change the IP address to where you want it to be (outside the pool).
I don’t think it is a real issue to leave the static address inside the pool if you would prefer as I believe the DHCP Server will check with a ping to make sure an address is free before assigning the address from the pool. Personally as you suggested, I always assign static addresses from outside of the pool. In the example you gave 10.0.1.1 to 10.0.1.29.
Did what you suggest, what happens is when I changed it to desired static ip outside the pool, the status is waiting. The machine itself didn’t acquire the assigned IP I put.
Remember that the machine in question does not get a new address as soon as you change it’t static reservation. It has no way of knowing that you changed the IP. Next time the machine requests an IP, it will get the new address. Normally that will be at about half the lease time.