15.13.8 Block Tab

The Block tab shows the blocks in your design. This tab appears only when your design contains blocks.

Figure 15-71. Hierarchy Window - Block Tab
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Instances and nets that are locked (fixed) in the block appear highlighted in yellow. You cannot change the placement or routing constraints in a locked block.

Figure 15-72. Locked Instances and Nets Appear Highlighted
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In the Block tab, you can right-click a block and select Properties to display its properties.