Hi Rick,
I have a acpc aligned dataset (dset1+acpc*)..I used the dataset copy function to create a Zero(one) fim dataset(fset1+acpc) from dset1. Then i used fset1 as the functional and dset1 as the anatomical and delineated various ROIs using the Draw dataset plugin...then i realised that my AC-PC transformation is a little out of line so i edited it ..and now to use these new transformations I had to write this dataset(dset2+acpc*) to the disk.
Now if i select the draw dataset plugin for delineating the ROI with dset2 as my anatomical it doesn't allow me to draw on fset1
So i tried changing the IDCODE_ANAT_PARENT of fset1.HEAD to the IDCODE of dset2..but this didn't help..I was hoping that there was some way in which I could edit the .HEAD of fset1 to make it think that dset2 is it's parent dataset..so as to avoid redrawing the ROI..
thanks so much,
aparna