Turn on/off invisible grid in a model window. This command is only available in 窶徃raphical view窶. If the grid is on, objects will 窶徭nap to窶 the closest grid positions when moved. In this case the menu text is 窶弋urn grid off窶. If the grid is off, the objects will just stay where you drop them. The menu text is then changed to 窶弋urn grid on窶. The grid size is controlled in the dialog box which appears when you use 窶廡olders窶ｦ窶 command in the 窶弃references窶 submenu of the 窶廡ile窶 menu.
Lock/unlock objects
Lock/unlock all objects in the active directory. When the objects are locked, they cannot be selected or moved.
If the objects in a folder are locked, all 窶彭ouble-click窶 operations can be done by a single click. Thus the objects act like buttons.
In particular, when nodes and events are locked, you can bring up the node/event editing dialog boxes by clicking their icons once, as opposed to double-clicking in the normal unlocked mode. Similarly when folders are locked, they are opened by clicking their icons once.
