Override Object Snap Settings - Autodesk 057B1-41A111-1001 - AutoCAD LT 2010 User Manual

The AutoSnap markers and tooltips are turned on by default. You can change
AutoSnap marker size on the Cursor & Selection tab in the Application
Preferences dialog box.
Use AutoSnap to Confirm or Change an Object Snap
If you have set more than one running object snap, you can press Tab to cycle
through all the object snap points available for a particular object.

Override Object Snap Settings

While you work, you can turn running object snaps on and off temporarily
by using an override key. Temporary override keys can also be used for other
drawing aids; for example, Ortho mode and Polar mode.
For example, if you have set running object snaps but you want to turn them
off for one point, you can hold down Fn-F3. When you release this override
key, running object snaps are restored.
There are also temporary override keys for individual object snaps. Override
keys are set up to be easy to find by touch without looking away from your
drawing.
The keys in the following illustration are the default keys, but you can change
key assignments and add your own as needed.
Hold down Shift and one of the temporary override keys in the illustration:
Object snap override: Endpoint
1
2 Enforces object snap selection
3 Toggles object snap tracking
4 Toggles object snap mode (OSNAP)
5 Turns off all snapping and tracking
6 Object snap override: Center
7 Object snap override: Midpoint
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