Which version of Max are you using? At least in Max 2023 zooming towards the cursor is the default, but there have been a few navigation changes over the years.
"I struggled a lot trying to get a rocky silhouette and understand how to use the common blender brushes for this kind of sculpt." Visual Language may help, in creating a more rock-like textured silhouette and as for your finesse with Blender's default sculpt brushes, then imo you've actually nothing to worry about really,…