Excuse me if this has already been added in a later LabVIEW version but I have found no references to it in any documentation. I am still developing with LV 8.6.1. I have found out that the Plot Name text is not editable in the legend during run-time. I am using the XY Graph but the missing features seem consistent among other graph types, too. If you select the entire graph in development mode, and change the text format with the drop down text formatting menu, all text in the graph is changed, including the legend. I found property nodes for formatting the text of labels, captions, scale names, and markers. I know there are many posts concerning annotations needing similar formatting capabilities. I also suggest the legend text have property nodes to format the text independently (size, color, font, etc). This would be very useful, as changing the text size, also appears to resize the small legend pictures displaying the format of the plot. This would be most useful when a UI allows window resizing and when other UI items are referenced in position with the legend line items.
An additional feature is to also allow the X scrollbar width to be adjustable during run-time as well. Or this could resize with the graph as the window grows. It does not scale in LV 8.6.1.
Window as designed for minimum resolution in my app (Minimum.jpg)
Window expanded showing misalignment of legend to other controls referenced to legend line items. Also showing X Scrollbar not scaling to window resize (Expanded.jpg)
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