'''Three possible methods for inserting volumetric ROIs''' [[LabelROIs]] - This is a straightforward but logistically cumbersome way of placing volumetric ROIs in [[tkmedit]]. [[SegmentationROIs]] - A more useful method within [[tkmedit]] for those interested in repeatedly placing multiple ROIs in a particular volume. [[LineWriterHelperROIs]] - A newer dev [[tkmedit]] tool that allows for sequentially numbered ROIs with a customizable stem. A drawback is these ROIs are only linear, with a one-voxel line width.