> For the complete documentation index, see [llms.txt](https://docs-7.phoenixlidar.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-7.phoenixlidar.com/lidarmill-desktop/workflow-kk/ground-control/manual-adjustment-horizontal-and-vertical.md).

# Manual Adjustment (Horizontal and Vertical)

You can apply a vertical or horizontal adjustment to the point cloud by selecting a GCP and selecting a corresponding point to which the GCP should shift to. This can be done either in the map or profile view. 

First, click the GCP in the point cloud, then click on the point which you would like to be moved to the position of the GCP. You should see in the **Measurements** window (top right in SpatialExplorer) that the GCP and point have been selected:

<figure><img src="/files/oLg19XDnQA2mt2TUMgpw" alt=""><figcaption><p>GCP 5 has been selected, as well as a point in the point cloud. </p></figcaption></figure>

Then in the **Corrections** window click **Import from Measurments**, and select whether you are importing a vertical, horizontal, or full (both vertical and horizontal) correction. After selecting the type of correction, you should see that the vertical and/or horizontal component of the correction are displayed:

<figure><img src="/files/7Qd8tFiX2uYVyh2tEP7p" alt=""><figcaption><p>Manually selected full (vertical and horizontal) correction displayed in the profile view</p></figcaption></figure>

To apply this correction, click **Apply** in the **Corrections** window and will see the horizontal and vertical component to be applied to the trajectory and point cloud:

<figure><img src="/files/RMblES2YxFPY8GBSrapB" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
In the example above a single point and GCP combination is used to shift the trajectory and point cloud, however you can use more than one GCP-point combination. If you import from measurements several different corrections they will all be averaged to determine a single, global shift. If you'd like to adjust the point cloud variably at different points along the trajectory, refer to the [LiDARSnap trajectory optimization](/lidarmill-desktop/workflow-kk/lidarsnap-v4.md) workflow.&#x20;
{% endhint %}