Yes, I totally understand this. I take it switching the "number of current samples to include" to 1 rectifies this completely. I tried it and it's fine. Just wanted to confirm: switching that number to 1, then back to 100, is a good enough way to do this right? It wouldn't alter the dataset, and it wouldn't do anything to the graphs that isn't undoable simply by changing the number back to 100... unless of course I had a picture auto-save happen exactly when I switch the number of samples to include to 1 ( )<br><br>Maybe you could have it so that if you double click it selects a sample set size of 1 at that point, sort of a "view this point" function. Then have single clicks set up ranges. So you could click say, here, and then say, there, and have the statistics calculated for that whole period.<br><br>Then maybe have a control-click which does what a double click does now, i.e. pick a window with the number of samples currently set in the "num of samples" box.<br><br>Just an idea.<br><br>