Hi DesuDeus, yes actually I meant to ask you about why you were worried about crashing older machines with this.

Did you actually run into a crash when running on some particular machine?

Over here when I load your file, it takes up about 158MB when first loaded where everything is hidden, then goes up to about 240MB when showing everything. So that's not really bad for old machines, unless it was a really very underpowered (very low RAM) old machine.

So I'm not really sure you would need to worry about that so much.

Also generally working with the full displayed model works fine on my 6 year old machine with a Radeon 9600 Pro video card...

- Michael