Building HLOD meshes from command line (not for WP)?

[useronym (Adam | Breach VR)]

Hi! Is there any way to run this process for building HLODs (inside a standard level, NOT world partition!)

Building Hierarchical Level of Detail Meshes in Unreal Engine | Unreal Engine...

In addition, how to run the command for multiple levels, without the need to re-start the engine between building each map?