... testing only for the control template on the screen. This seems more likely to get the right intersection first time on a large layout. I've done a bit of testing and it seems to work quite well. I have also beefed up the wording even more, although I feel this is now going a bit over the top. It would be better to move this to the more information notes, out of the way of experienced users, but for some reason many users seem reluctant to click the help buttons and bars. 2_271324_220000000.png Thanks for your thoughts about the grid lines. I think I will leave it as it is, on the sensible "if it ain't broke don't fix it" basis. regards, Martin. posted: 27 May 2011 19:04 from: Brian Nicholls Martin Wynne wrote: A related issue is whether to display the full grid lines in the negative quadrants? I've always found not showing them helpful. You can work in the negative quadrants if you wish, but in practice there is seldom any reason to do so ...