We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:
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The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.
I'm afraid not. You'd have to do each sub-brick separately then glue them together with 3dbucket. This is how I made the TTatlas+tlrc dataset, for example (which has 2 sub-bricks). In fact, that's why I wrote 3dUndump in the first place.