Tools/materials: CAD 21, Dell xp15, Win 7 Ultimate Edition
Methods:
1. Open CAD 21, and then draw the graphics you need in the drawing.
2. click drawing in the toolbar at the top of the drawing interface.
3. Click Create in the pop-up interface.
4. on the page of creating blocks, click to select the object, and then select all the shapes in the drawing interface.
5. press enter again.
6. In the Create Block interface, enter the name of the block, select Convert to Block, and click OK.
7. Click the insert block in the shortcut bar on the left side of the drawing interface.
8. Select the newly created block in the pop-up page, and then click OK.
9. Move the cursor in the drawing interface and click the left mouse button to insert the block.