Adding Structures to the Block Diagram
Complete the following steps to add a structure to the block diagram.
- Select a structure on the Structures palette. The cursor becomes a small icon of the structure.
 
- Click the block diagram where you want to place the top corner of the structure and move the cursor down and to the right or left.
 
- Click the block diagram again when the structure is the size you want.
 
After you add the structure, you can resize it.