Description: Use the standard End cap workflow with manual face selection, or automatically discover and cap every unobstructed open end of hollow Frame members.

Prerequisites: Frame members. Automatic selection requires hollow profiles and intentionally ignores solid bar stock.

Notes:

1. Leave Select all open frames off for built-in-style manual selection; enable it for automatic discovery and optional exclusions.
2. Accurate is recommended for off-center obstructions; Quick is faster but only samples the center ray.