Viewport camera set rotation pivot

How do I set the viewport camera rotation pivot on unreal engine? You know, like F but focusing on where the mouse is, Most softwares use Middle mouse click

In most 3d programs you’ve got 4 basic navigation modes: Pan, rotate zoom and SET PIVOT POINT, I’ve got 4 examples:
blender (alt+MMB), unity (MMB), CATIA (MMB) and sketchfab (dbl left click)

ue4 should be alt+mmb