At the most bottom part of the page you can find the scene controls, using those you can change lighting, expressions, select pose or animation, change animation speed, change the camera.
You can toggle between different modes by clicking the mouse click on one of the selecting option,
Double mouse click to open a sub menu with more options (Lighting, Expression, Animation menus)
Reset - The Reset button, only resets the avatar and scene but not the camera or speed.
**Lighting Expressions Speed Animation Camera Reset**
Click to change , double click for more options.