# Toolbar

## Toolbar

You learned to create a pipeline in [Create a Pipeline](/data-shaper-1.21/knowing-the-data-shaper-designer/pipelines/create-pipeline.md). You’ll perform a lot of operations on the pipeline canvas, but a lot of additional functionality is available from the pipeline editor’s main toolbar.

There are two other important toolbars to work with [unit tests](/data-shaper-1.21/knowing-the-data-shaper-designer/pipelines/pipeline-unit-testing.md) and [projects and environments](/data-shaper-1.21/knowing-the-data-shaper-designer/index-1.md). Check the respective pages to learn more about managing your projects and environments and to learn how to write unit tests for your pipelines.

Let’s walk through the top toolbar:

![Hop - Pipeline Toolbar](/files/Rn8zdFrxdKdllcTyjaje)

| Action                  | Icon                                                                        | Description                                                                                                |
| ----------------------- | --------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------- |
| run                     | <img src="/files/cgl32KbwTHPOrm487Zl5" alt="Run" data-size="line">          | start the execution of the pipeline                                                                        |
| pause                   | <img src="/files/bQhdrcywA8DbXBBEFBgL" alt="Pause" data-size="line">        | pause the execution of the pipeline                                                                        |
| stop                    | <img src="/files/Hw5PMMof1ZyT7DEk0lxc" alt="Stop" data-size="line">         | stop the execution of the pipeline                                                                         |
|                         |                                                                             |                                                                                                            |
| preview                 | <img src="/files/C390FHs6b7V0n35lVuvR" alt="Preview" data-size="line">      | preview the pipeline                                                                                       |
| debug                   | <img src="/files/cFZaUsQxWeBYG6STDarD" alt="Debug" data-size="line">        | debug the pipeline                                                                                         |
| print                   | ![Print](/files/MlIhneIsHIMayCcn7ZSi)                                       | print the pipeline                                                                                         |
|                         |                                                                             |                                                                                                            |
| undo                    | <img src="/files/wG0F8XyMNDmuAPhMFJy3" alt="Undo" data-size="line">         | undo an operation                                                                                          |
| redo                    | <img src="/files/jCy08IfjNBcQ62zHZRLt" alt="Redo" data-size="line">         | redo an operation                                                                                          |
|                         |                                                                             |                                                                                                            |
| align                   | <img src="/files/b0T4qUiRmP7RezS7yhkI" alt="Snap To Grid" data-size="line"> | align the specified (selected) transforms to the specified grid size                                       |
| align left              | ![Align Left](/files/Bjca8WaNab0Xisqav3L3)                                  | align the selected transforms with left-most selected transform in the selection                           |
| align right             | <img src="/files/BKd4ikVMx499EMIcx6UX" alt="" data-size="line">             | align the selected transforms with right-most selected transform in the selection                          |
| align top               | ![Align Top](/files/ErySNXby0GQpvLabtu7d)                                   | align the selected transforms with top-most selected transform in the selection                            |
| align bottom            | ![Align Bottom](/files/yyLjPVaW3WBTc6XZFEOt)                                | align the selected transforms with bottom-most selected transform in the selection                         |
| distribute horizontally | ![Distribute Horizontally](/files/RY3U4lSychCw8nB62dHk)                     | Distribute the selected transforms evenly between the left-most and right-most transform in your selection |
| distribute vertically   | ![Distribute Vertically](/files/O6nTAIaKCJ9tXZO4MPyf)                       | Distribute the selected transforms evenly between the top-most and bottom-most transform in your selection |


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