Hi, I often work with multiple subjects and multiple repetitions of movement that I need to analyse. Therefore it would help me if Kinovea can combine data from multiple clips in a single spreadsheet. A middle-ground is to be able to copy marker positions to clipboard so I can easily paste them in a spreadsheet that I have opened next to Kinovea. This is already possible for angles, using tracking, but not for the manual placement of markers using the marker tool.
Check via Tools > Scatter diagram. It shows the positions of all the markers and has a "Copy to clipboard" function that copy the data as CSV.