Ok so I just had to deal with something similar so here is what you can do. Go to the Image Properties Editor after uploading your images and export to file.
Select the correct attributes and select a save location, make sure to save it as a CSV file to make it easier to open next.
Open the file in Excel and you should get something like this
The data is stored as Image Name, Latitude, Longitude, Altitude, Omega, Phi, Kappa, Horizontal Accuracy, Vertical Accuracy. Looking over the Pix4D books you will find out that Omega is yaw, Phi is pitch, and Kappa is roll.
See if you can export your data from the camera and just overwrite the data exported from Pix4d. Once you get it on the csv just use the same page in Image Properties Editor to Import from file and you should be good to go.