Oddly, this bug is now present in 8.0 as well, it used to work. I reported these native toolbar problems in February 2009:
- Native toolbar check button and radio button styles require double-click to activate.
- Separators are not visible.
- Making a native toolbar button insensitive does not work.
I haven't installed 8.0.2, but in 8.0 WindowBuilder, unchecking the Sensitive checkbox for a native toolbar button results in a walkback, losing work.