I didn't use any modifier key in the gif... [it uses alt on a mac]...
I just release the mouse button then re-apply the push/pull tool...
john

@daviddoria said:

Or is there a better/easier way to erase the unwanted parts?

[screenr:1llspzo0]H7fN[/screenr:1llspzo0]

Hello daviddoria,

What version of SketchUp and Windows do you use? Could you please download the plug-in directly from our website and install it again:
http://drivingdimensions.com/download/

If registry entries do not exist, Sketchup creates them. So if it crashes, it might have created the missing entries which you can then edit and restart Sketchup so that it can proceed in the installation process until it works.

So it works! This makes me very lucky. 👍

If you like to use ruby scripts or plugins, you need to convert the text files from dos format to unix format.
There is a terminal program. In the terminal, go to the Sketchup/Plugin folder using cd, and then run the command
*dos2unix .rb
for converting all ruby files in that folder.