Is it possible to simulate GNSS data?

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The documentation at 5.6.2. GNSS Configuration states that

If GPS signals are not available (e.g., at many indoor locations), you can use example GPS position data for test and development purposes.

If GPS signals are not available (e.g., at many indoor locations), you can use example the GNSS command emulator for test and development purposes.

However I cannot see that the given examples can simulate the data. So is it possible or not?

The Japanese documentation of the same chapter does not include these sentences.

Does setting the position by CXD56_GNSS_IOCTL_SET_RECEIVER_POSITION_ELLIPSOIDAL trigger the geofence?