[Freesurfer] corpus intrudes into other structures

Hi Everyone,

I have frequent cases of the corpus callosum intruding into other structures.

I followed directions for "Expand the boundary of an existing region" at https://surfer.nmr.mgh.harvard.edu/fswiki/tksurfer_labeledit#Alternateeditin... without success, Then I heard that version 5.0 might solve the problem of structures intruding into others. However, when I used the new version, the entire corpus area was labeled as "none"

I returned to the previous version and to "Expand the boundary of an existing region" but am still not able to make it work. I got the path drawn between the two structures, but when I choose "remove from label" on the "Custom Fill" box, the entire brain is labeled as the structure I want to expand.

I simply want to relabel the part of the caudalantriorcingulate that has been labeled corpus.

Thanks, Helen