Trend X-axis / Time Markings
Currently (2016 R2), the x-axis on trends is marked with a start time, end time and span. Pre-2016 versions of provided additional markings along the axis that identified intermediate dates/times, without having to click on the trend to bring up the marker with values and timestamp. This functionality was useful and should be considered for re-incorporation.
Carlos Mendes commented
I would like to get that improvement in PI Vision tool.
Tomasz Ziemniak commented
This functionality is especially useful when using large screens like 60' so when the trend is wide and there is only beginning/end timestamp, it's difficult to say what was the time&date for a specified data point. We can't use mouse and keyboard for that screen so we can't use vertical line functionality when clicking on the trend.