Softimage SDK Programmer's Guide > Customizing with the SDK > Custom Fx Operators >

# Installing UFOs

You can install Fx operators to the following locations:

- The Softimage home directory under \Application\bin\ufos.

- The factory, users, or workgroup add-on directories under \Application\fx\ufos.

If an Fx operator is found in any of these directories, it will appear in the Fx Operator Selector section of the Softimage Compositor's interface.