How to open multiple Historian Client trends with one shortcut
First Step
Copy all .aatrend files in a folder
Second Step
Create a shortcut pointing to "C:\Program Files (x86)\Wonderware\HistorianClient\aaTrend.exe" "C:\<folder path>\Trend1.aaTrend" "C:\<folder path>\Trend2.aatrend" "C:\<folder path>\Trend3.aatrend"