Short description
This LISP adjusts Civil 3D manhole structures so their rim elevations follow selected TIN surfaces or profiles, with elevation offsets, batch selection and a dialog that supports live Apply preview and final confirmation.

Sort / Purpose: Civil 3D utility to set structure (manhole) elevations based on TIN Surfaces and/or Profiles, using a scrollable dialog with filters. • Scope: Works with AeccDbStructure and profile-view network parts, using profiles or surfaces as elevation sources, with separate offsets. • Priority: For each manhole, it tries Profiles first; if no valid profile elevation, it falls back to Surfaces.

Sort / Purpose: A pipe-only shortcut command that still launches the same full UI. User may ignore manhole lists if not needed.

• Type: Shortcut alias to the master interface
• Scope: Provides access to all pipe-related elevations
• Goal: Simpler entry for users working only with pipes