... , I would know a simple solution to all this. But as it is I don't, and the only practical way seems to be to use a home-made draggable TPanel component instead. Which is certainly doable, interesting even, but definitely not quick. Or possibly to look for some 3rd party ready-made open-source component instead. There are plenty of closed-source paid-for components such as those from DevExpress, but we can't use those in an open-source project: http://www.devexpress.com/products/vcl/ What I think I'm saying here is that the dream of switching everything to Templot3 from Templot2 in the next few months is looking a bit unlikely now. A program which works is not the same as a program which is easily usable. Which leaves me wondering how often I should be posting updated code files in the meantime? As far as I can see, no-one has downloaded any of the files which I posted on SourceForge a few days ago. cheers, Martin. posted: ...