# Options tab

![Single Threader](/files/jx2P5NmKdN9UsCsshnPC)

This tab contains the following fields:

| Option              | Description                                                                                                                                                                                 |
| ------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Injector step**   | Specify the step that that satisfies the Mapping Input Specifications (filename, type, length, and precision) by entering its name or clicking **Get**.                                     |
| **Retrieval step**  | Specify the step from which the data is retrieved by entering its name or clicking **Get**.                                                                                                 |
| **Batch size**      | Specify when processing of a chunk of data starts based on the number of rows received, which is 100 by default. Alternately, specify **Batch time (ms)** to process based on a time delay. |
| **Batch time (ms)** | Specify when processing of a chunk of data starts based on the specified time delay, instead of **Batch size**.                                                                             |


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