Drag the scrollbar or use the scroll wheel or keyboard to navigate: Up/K — scroll up Down/J — scroll down Space/F — scroll down one viewport length B — scroll up one viewport length Edit Scrollbar's costumes (after "Point") to change the scrollable contents.
This is just a 2.0-ization of my older project. Updates: v5 — Automatic length detection (based on LiquidMetal's remix) v4 — Lots of optimizations v3 — 2.0-ized