Modifying Entities Using the Heads-Up Display Toolbar
You can use a Heads-up Display toolbar that appears when you select entities in the graphics area:

Using Heads-up Display, you can quickly zoom to the specified entities, change the entities Layer, LineStyle, and LineWeight, dimension entities, or create a Block from the entities.
You can turn the Heads-up Display on and off.
The toolbar is dragable. If you do not click an option, it disappears shortly thereafter. To redisplay it, specify an entity that you already selected. You can set the display duration of the toolbar.
To turn the Heads-up Display toolbar on and off:
- Click Tools > Options (or type Options).
- In the dialog box, expand User Preferences > Drafting Options > Heads-Up Display.
- Do one of the following:
- Click Enable heads-up toolbar to display the Heads-up Display toolbar automatically when you select entities.
- Clear Enable heads-up toolbar to prevent the display of the Heads-up Display toolbar.
- In Heads-up toolbar display time, set a time (in milliseconds) before the Heads-up toolbar disappears from display.
- Click OK.
To modify entities using the Heads-up Display toolbar:
- In the graphics area, specify one or more entities.
The Heads-up Display toolbar appears near the pointer.
- Select an option:
Option Button Description See also Zoom to Selection 
Zooms to the bounding box of the selected entities. Zoom to Selected Entities LineStyle 
Sets the LineStyle for the selected entities. To load LineStyles, use the LineStyle command. Loading and Setting LineStyles LineWeight 
Sets the LineWeight for the selected entities. Setting the Active LineWeight Layers Manager 
Displays the Layers Manager dialog box. You can create or modify Layers. Managing Layers Entity to Active Layer 
Changes the Layer of the selected entities to the active Layer. Changing Entities to the Active Layer Change Entity Layer 
Changes the Layer of the selected entities to match a destination Layer. Specify an entity on the destination Layer or specify the Layer Name option and select a Layer in the Choose New Layer dialog box. Matching Layers SmartDimension 
Creates a linear, radial, or diameter Dimension depending on the entity you selected. This option invokes the SmartDimension command. Using SmartDimensions Make Block 
Creates a Block from the selected entities. This option invokes the MakeBlock command. Defining Blocks