I dowloaded Slicer 4.10.2. in this moning and I am so new in this software. I just would like to ask you that where I can add extra effect. When I watch some video on Youtube, I saw that their software have much more effect than mine such as Mask Volume.
You will need to download the “SegmentEditorExtraEffects” extension.
See info on how to install extensions here: https://www.slicer.org/wiki/Documentation/Nightly/SlicerApplication/ExtensionsManager#Installing_an_extension