Are you wanting to do this from UI or from code? If from code, then what language?
I have the bits of code to do this in Unity with C#. I don’t have time right now to translate to another language but could provide some tips if interested. Basically you can load the camera settings which includes the position, orientation, and field of view of the camera from a file located at [project]/opensfm/undistorted/reconstruction.json. Then you can loop across all cameras and see if the point you want is within that cameras view frustum. Let me know if you want more details if you want to try from code.