Drape outside component or group?

[thomthom]

From: http://download.sketchup.com/OnlineDoc/gsu6_win/gsuwin.html

@unknownuser said:

Note - The draped edges will be outside of a group or component context if the TIN is encapsulated within a group or component.

When I try that, the lines becomes part of the geometry inside the group or component. I've even tried double nesting. Nothing.
Anyone?

[toxicvoxel]

Work-around:
Paste in place a copy of the target mesh into another Sketchup session.
Paste the drape lines into the same session above.
Create as layer called "drape" and make it active.
Drape the lines onto the copy of the target mesh.
Open the target mesh group, select a draped line and right-click > select all on same layer.
Group, then copy the draped lines and paste in place into the original file.

If find that by isolating the target mesh in this way also speeds up the slow drape operation considerably.