thanks for the replies, I dug a little deeper and found out about the time thing and this link http://www.mediafire.com/file/brjzmnqzbcv38fp/RichSectionv0.5.8FULLByDimitri.zip: where a modified plugin can be found. Works in SU16 and seems pretty good although you can only have one material for the section cut. Trimble/Sketchup so needs to address this issue with sections in my view.