In Spotfire version 10.0 and earlier versions, when we create new markings using the "New" button under "Visualization Properties"> "Data" > "Limit data using markings:", one has to manually scroll the list to select the created marking (especially when there are many markings)
Resolution
Starting from Spotfire 10.1 when a new marking is created, the list automatically scrolls to the new marking to make it easy to find and choose it.