Hi Michal,

glad it worked out. I'm not sure I fully understand what you mean by thresholding individual 3D images, but if you just want to threshold an image for all voxels above a certain Z value, then just use 'fslmaths input.nii.gz -thr NUMBER ouput.nii.gz'. I would not use easythresh, as that also implements correction for multiple comparisons and takes into account the cluster size.

Yep, 3dundump is a good way to create a seed.

Keep up the good work!
Maarten