Use this dialog box to control how blocks are inserted for a specific range of entities or for a specific value in a theme.
Select a block from those already defined in the current drawing or click to go to the Select Drawing File dialog box.
Select a layer for the block, or click to go to the Layer Properties Manager dialog box.
Specify the scale for the block. Use positive numbers. For example, 2 doubles the size, 0.5 halves it.
Specify the angle to rotate the blocks.