About Declustering
Convert clustered and duplicate points to single points by pre-gridding/voxeling. Eliminates duplicates and amalgamates clusters.
The Horizontal declustering resolution is a percentage of the cell or voxel width. For example, 100% means that points within one cell width of each other will be combined into a single point.
The Vertical declustering resolution (if displayed) is a percentage of the voxel height.