I believe ViewCapture routines set the “IsPrinting” property to true on the display pipeline for when they are being run. IsPrinting==true is the only time that you’ll see the tiling occur in Rhino. When tiling is occurring, you can look at the Viewport’s screen port to help decide when to draw the legend. I don’t really have a great idea for doing this right now with respect to drawing the 2d legend across the tiles, sorry.