You can create a block. The purpose of a block can be summarized in two words: Reusable Content.
You particular block will have two components: (1) a circle and (2) hatch. Both components will constitute a single entity and that single entity is called a 'block.' Assuming you want uniformity, all your blocks will look and behave the same and will be represented by a circle with hatch. (Of course, there are exceptions to the block looking 'the same.')
When you create a block, place both the circle and the hatch on layer 0. To create, enter BLOCK on the command line to create your block. At a minimum, you'll need to (a) name your block, (b) select the components and (c) pick an insertion point. ***Note: Each block must use a unique name. Once your block is properly created, you can move it to any layer. The block will inherit, or adopt, the color of the host layer. The same block on different layers and adopting different colors is an exception where blocks do NOT look the same.
To make your block have a black circle instead of the circle defaulting to the layer's color, put the circle component on layer 0, then with the circle still selected, go to the properties palette to override the circle's color to 0,0,0. Keep the hatch on layer 0 makeing sure the properties palette displays ByLayer for the hatch color. When you insert this particular block, the hatch will adopt the color of the host layer while the circle itself will always be black (0,0,0) due to your color override.
You can insert your block using several commands, for example CLASSICINSERT. Use the dropdown in the block insert dialog window to select your block then click OK for insertion.
Chicagolooper
