Unreal 5.3 Modifying properties (color) of individual points in a Point Cloud during gameplay

Unreal 5.3 Modifying properties (color) of individual points in a Point Cloud during gameplay

I want to change the properties (e.g. color) of individual points in a Point Cloud based on user interaction (via linetrace) during the gameplay? I could change the color of points in a box/sphere to one color, but I cannot apply multiple colors. The blueprint function (Set Point Cloud with Colors) is not accessable from Blueprints.

Set Point Cloud with Colors

Anyone has any hints how this could be solved?