Hmm, I understand the purpose of that, but I don't think that functionality exists, unfortunately.
One way to view the results of seedbased correlation globally is to have a surface mesh of the anatomical (e.g., made in FreeSurfer) open in SUMA and some dset in the same space open in AFNI, and turn on the "talking" ability between the two GUIs---they will send info back and forth, and this will display the InstaCorr results on the surface mesh. (One just also needs to include the "-niml" option when opening each of the GUIs.)
Do you have surface/FreeSurfer output for something like this?
-pt
