| Property | Description | Default Value(s) | Restrictions |
| Block Indices (BlockIndices) |
This property lists the ids of the blocks to extract from the input multiblock dataset. | ||
| Input (Input) |
This property specifies the input to the Extract Group filter. | The selected object must be the result of the following: sources (includes readers), filters. The selected dataset must be one of the following types (or a subclass of one of them): vtkMultiBlockDataSet. |
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| Prune Output (PruneOutput) |
When set, the output mutliblock dataset will be pruned to remove empty nodes. On by default. | 1 | Only the values 0 and 1 are accepted. |