Steps

##Install plugin download from link. Save the text as .rb file, then copy it into the plugin folder under your SketchUp install folder.

MacOS

/Library/Application Support/Google SketchUp 8/SketchUp/plugins

Windows

c:/Program files/Google/Google SketchUp 8/SketchUp/plugins

Restart

Restart your SketchUp

Merge Overlap tile

1.select a tile, then click Plugins->SDM Tools->Misc Tool->Clip/Grem GE

2.Hold shift key and click another tile, these two tiles will be merged

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Published