Track Point snap
Use the Track Point snap to set a temporary tracking point while using a command. The Track Point snap can be used only while another active command is requesting a point.
To set a Track Point snap
1 Choose a command, for example, type line or move.
2 Do one of the following to choose Track Point ():
On the ribbon, choose Draw > Track Point (in Entity Snaps).
On the menu, choose Tools > Entity Snaps > Track Point.
On the Entity Snaps toolbar, click the Track Point tool.
Type tt and then press Enter.
3 Select a point to mark a temporary tracking point.
4 Continue with the original command.
See also...