CONN compatible with HCP MSM-All CIFTI data?

Hi all, I searched the forum but I only found two (unanswered) threads asking about the compatibility of the CONN toolbox with CIFTI data.

Is CONN compatible with CIFTI-formatted fMRI inputs? I would like to analyze the human connectome project MSM-All registered ICA-FIX denoised CIFTI data in CONN but I have not found any documentation on this.

Note, I was able to use the subject-level Freesurfer (.mgz) MRI as a structural file in CONN, but that is not what I'm going for, and I have not been able to properly import the surface-registered functional data.

If CONN is not compatible with CIFTI data, can anyone recommend a graph theory package that is? Any help is much appreciated!
Eric