Master Scene Cleanup is a single-dialog utility that bundles four common 3ds Max scene-maintenance tasks into one toolbar button. Bloated .max files, mysterious slowdowns, and inflated save times are often caused by leftover empty geometry, dormant Track View managers ("zombie tracks"), and unflushed memory — this script targets all of them in one pass, with checkboxes so you can pick exactly which operations to run.
What it cleans:

V-Ray to Standard Converter is a lightweight scene-migration script that strips V-Ray dependencies out of a 3ds Max file in a single pass. It scans the scene for every VRayHDRI map and VRayMtl material, then replaces them with their native 3ds Max equivalents — BitmapTexture and Standard material — while preserving names, file paths, and the most common texture slot assignments.

Description:
  Set selected edge length, total chain length, round edge lengths, increment/decrement selected edge groups,
  space selected chains equally, and align selected chains without spacing.