If you want to eliminate an object from the scene without deleting it, you can choose Edit ➪ Hide. This causes the selected object to be hidden from the scene. Hidden objects cannot be selected from the interface, which keeps them from being accidentally moved. Hidden objects still appear in the Outliner panel, but they are dimmed, as shown in Figure 8.4.
Not only can objects be hidden, but SketchUp also allows individual entities to be hidden. This gives you the chance to see inside an object. Figure 8.5 shows a mailbox component with the front panel hidden, allowing the viewer to see inside.
FIGURE 8.4 Hidden objects appear dimmed in the Outliner panel.
FIGURE 8.5 Individual entities can also be hidden, revealing the interior.
Hidden objects are not visible, but if you want to quickly see all the items that are hidden without unhiding them, simply toggle the View ➪ Hidden Geometry menu command. This makes all hid- den objects visible and selectable. If an entity is hidden, then the Hidden Geometry toggle shows the hidden face as a grid, as shown in Figure 8.6.
One nice aspect of hiding objects is that it is reversible. However, deleted objects can only be recovered by choosing Edit ➪ Undo. To unhide an object, you have three options. Choosing Edit ➪ Unhide ➪ Selected is only available if the View ➪ Hidden Geometry toggle is enabled. With this toggle selected, you can select hidden objects and unhide them by choosing Unhide ➪ Selected.
Choosing Edit ➪ Unhide ➪ Last causes the last hidden object to reappear. If this command is used multiple times, the objects reappear in the reverse order in which they were hidden. Choosing Edit ➪ Unhide ➪ All causes all hidden objects to reappear.
FIGURE 8.6 Hidden faces are shown as grids with the View ➪ Hidden Geometry toggle enabled.