Currently in a PI Vision Trend you can only see the full Attribute Path by hovering over the attribute name in the legend. If the attributes have differently named parent elements, then the legend will show the Parent Element and attribute name only, it will not show the parent element's parent element or more than that. If the parent elements are named the same, then the PI Vision trend will only show the Attribute name. For example, in the attached image there is a trend with 2 attributes named "Attribute", the first one has the following path: "\\AARVM1\854090\Parent1\Child 1.1\Child 1.1.1|Attribute", and the second attribute has the following path: "\\AARVM1\854090\Parent2\Child 1.1\Child 1.1.1|Attribute". Both attributes have identical names, and identical parent elements, as well as identical parent element's parent element, however the 3rd parent elements, going up the AF hierarchy, are different, but PI Vision only shows the attribute names. The only way to distinguish between either one of these attributes in the PI Vision Trend is to hover over the name of the attribute in the legend, which shows the full path. It's also not possible to distinguish between these attributes in the Trace Options without hovering over the attribute names. My suggestion, which is linked to case 854090, is to give the user an option to view the full path in the trend legend or to be able to choose how much of the full path to display in the trend legend.
This feature is very much wanted. It will enable comparing two or more instance of equipment which are structured with same AF Templates, which holds deeper hierarchies within PI AF elements, such as maintenance standards like ISO 14224. Today end users needs to create bitmaps and manually insert text which identifies which equipment that the different Legend Labels represents. So by extending the Trace Options and populate more entries for each level within the PI AF element tree, or even better being able to sett a fixed number of levels to represent for a PI Vison Display will make the modelling more useful for both end users and Display creators
This feature request could perhaps be extended by allowing to specify the number of upper elements levels to display abobe the attribute, from none to th full path. Note that this feature already exists in PI-DATALINK PIAF Search dialog windows through a slider that split the full path in two pieces.