Through the menu location: [Insert] → [Block].

After selecting the name of the block in the dialog box, click OK.

Block is to combine multiple entities into a whole, and name and save the whole. In future graphic editing, a block is regarded as an entity.

Blocks include visible entities, such as lines, circles, arcs, and visible or invisible attribute data. Using tiles can help users organize their work better, create and modify graphics quickly, and reduce the size of graphics files.

Other methods of inserting blocks include:

1) Toolbar: [Draw] → [Insert Block]

2) Order Line: Insert