Thanks for the details.
In the case of a camera with many lenses, you can initiate your project in Pix4Dmapper in different two ways.
The first would be by defining a rig - indicating to the software that there are six lenses with defined parameters. However, to do it, you would need to have a rig add-on for Pix4Dmapper. Please contact our Sales Department if interested. In the rig, there is an establishment between the reference camera and other cameras (distances and angles from the reference camera to other cameras which the camera manufacturer should know.)
The second possibility is to process all the images together without defining the cameras separately. In this example, however, you have to check if the camera parameters that Pix4Dmapper reads from EXIF are correct. If not, you have to redefine them. Note that the internal parameters should be accurate in order to start the processing without errors since the beginning.
It is hard to say with which method will work better with that camera. That’s something to be tested.
Please keep me updated about the results you get. If you will have some problems with that project. I would highly advise you to submit a ticket to our Pix4D Support Group. It would improve our communication and data transfer.