Look at "Slicer"...
https://sketchucation.com/pluginstore?pln=TIG_Slicer
https://sketchucation.com/plugin/781-tig_slicer
http://sketchucation.com/forums/viewtopic.php?p=374969#p374969

Reply from the 'supodiumforum':

"We are working on SU 2015 compatibility. It is coming soon but it's not ready yet.

We are on the SU beta team, and we have already started work. In the meantime, if you want to continue to use Podium, you will have to use it with SU2014.

In future, do not install Podium on new versions of SketchUp or with a new operating system, unless you read here that it is compatible. If you do, please be aware that it might not work as intended, or it might not work at all. "

we would like to examine the scene file and fix the issue if you are able to send it to us, but to work around the issue, you might have luck if you go to system preferences->general, and check the box for "close windows when quitting an application". This ensures that opened docs are not reopened when the app is opened.

Alternatively, we only attach or plugin to the most recently opened model, so you may have luck opening another su file by double clicking it. The problematic scene file should still load, but we won't attach to it, process it, etc. You should then be able to close it without an issue.

We have resolved some issues that would cause complex/large scenes to crash in this manner on OSX in a nightly build. If you are interested in testing your issue out in one of those builds, send me a PM.

I donn't know Podium, so only my first impressions:

one bench seem to float in the air there are only sharp edges, some bevels would help to increase realism the ground in the reference image seems to be much more reflective

@dave r said:

See if this helps.

Thanks Dave, that was ideal. I updated my profile - just downloaded make yesterday. That post would be very useful as part of a sticky about differences for Mac users, seeing as even the Trimble tutorials don't seem to cover them. Cheers, Paul.

Hi and welcome Paul from one Irishman to another.

I think you will be well able to impress 'your lady' as SketchUp is very easy to learn and fun to master.

Mike