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A dialog box has two states, either displayed on the screen or closed.
But a palette can be displayed but hidden,
which will spare you the continuous effort of opening and closing
Almost all of the dialog boxes can’t be resized, as opposed to palettes, which can be resized horizontally, vertically, and diagonally .
Dialog boxes can’t be docked, but palettes can be docked at the four sides of the screen
This command will add a new layer to the current drawing. Using the Layer Properties Manager, click the New Layer button
There will a new layer with temporary name Layer1. The Name field will be highlighted. Type the desired name of the layer. You should always stick to good naming convention; a layer containing doors should be named Door.
Select the desired color (or you can type the name/number of the color in the Color field), then click the OK button to end this action
Another way to set up (or modify) a layer’s color is by using the pop-up list in the Layers panel, just like below
If the desired linetype is listed, then select it. If not, you need to load it. Click the Load button, and you will see the following dialog box
Browse for your desired linetype, select it to be loaded, then click OK. Now the linetype is loaded; you can select it and then click OK.
Select the desired Lineweight and click OK To see the lineweight on the screen, use the status bar and click the Show/Hide Lineweight button on.
Another way is to use the Layer Properties Manager palette, then doubleclick the Status of the desired layer’s name.
The longest way is to use the Layer Properties Manager palette, select the desired layer, and click the Set Current button

• Start AutoCAD 2007
• Open Practice 5-1.dwg
• Create a new layer and call it Centerlines, with the color yellow and the linetype Center; make it current, and draw two lines, horizontal and vertical, using the centerline of the circle and OSNAP and OTRACK
• Create another layer and call it Hidden, with the color 9 and the linetype Dashed; make it current and draw a circle using the same center point of the other circles with R = 1.5
• You will have the following shape

AutoCAD provides controls to show/hide layers (Freeze and Off), lock and unlock layers, and plot and not plot layers. Check the two examples below: The first example is layer “Title Block”