Dev build 2.4.0.18

I've uploaded a new dev-build on the Pro downloads page. This version has the ostensibly complete 'calculation queue' wizard, which has been a popular request for several months now (in various guises). I could go on to explain what it is and what it does, but I think you'll 'get it' when you see it. Documentation will follow this week or next.

Otherwise, build 2.4.0.18 is the same as 2.4.0.17 from about a week ago.

Suggestions and bug-reports are welcome!

Cheers, Aaron.