Toolbar icons
Some icons are always visible as you navigate through the system. Additional icons may be added and removed from view when different views are active. When icons appear dimmed, their functions are unavailable.

Icons that appear on the toolbar are grouped in the following categories:
| Category | Description |
|---|---|
| Standard toolbar icons | These icons may be dimmed (or unavailable in certain views) but they are always present on the toolbar. |
| Slot sheet toolbar icons | These icons appear only when the Slot Sheet is active. |
| Px Editor toolbar icons | These icons appear only when the Px Editor or Px Viewer is active. |
| History extension manager toolbar icons | These icons appear when the History Editor view is active. |
| History Editor toolbar icons | These icons appear when the History Editor view is active. |
| Todo list toolbar icons | These icons appear when the Todo List view is active. |