> For the complete documentation index, see [llms.txt](https://docs.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.phoenixlidar.com/spatialexplorer-8-and-9/user-interface/toolbars/workflow/ground-control/manual-adjustment-horizontal-and-vertical.md).

# Manual Adjustment (Horizontal and Vertical)

A rigid horizontal and vertical correction can be applied by [creating a manual correction](/spatialexplorer-8-and-9/user-interface/windows/corrections.md#creating-corrections-manually) in the correction window. If a variable horizontal adjustment is needed, such as in the case of a challenging mobile lidar data set, or any data set with a very poor initial trajectory, use [LiDARSnap with manual corrections enabled](/spatialexplorer-8-and-9/user-interface/toolbars/workflow/lidarsnap-v4.md).