How to set up a static ip for FreeNAS GUI

[danb35]

Virtual Environment to test it and learn it a bit. After installation default IP for Web interface is set to 10.0.2.15 however my network is on 192.168.2.1

How is the networking configured in the virtual environment in question? Because it's possible (I'd even say likely) that the 10.0.0.0/8 network is being done there. But if not, the answer to:

How possible Can I change the web interrface IP address?

...is the same as it was over five years ago when this thread was started (which answer was given in the second and fourth posts): use the console menu (that thing you posted a screen shot of) to configure your network interface for the desired address. But then figure out what on your network is handing out IP addresses in the 10. range.