Could someone help me with a pipeline for creating a label from an edited existing label? I have aligned the aparc+aseg and its respective orig into ac-pc plane using AFNI. I then used fslmaths to make an ROI of just the rh_mid-frontal-gyrus. After editing the ROI using freeview, I am having trouble identifying which commands to use in order to create a new label and extracting the volume. 

Thank you,

Jae