UK Biobank Fieldmaps in BIDS Format

Hello,

I am working on analyzing some UK Biobank data through a BIDS-App. I have the anatomicals, functional, and diffusion images within a BIDS-like structure, however, I am struggling a bit with the field maps as the file names are different from what I am used to. Has anyone gotten this to work successfully and/or have any pointers?

Best,

-Tim