I would like to calculate the total distance travelled from recorded coordinates.
Using the nodes of Palladian I could already calculate the distance to all previous points (see picture).

The yellow marked value is the distance to the previous point. By adding up all these points I should be able to calculate the total distance. Unfortunately I can’t figure out how to do this, but I guess it’s very easy.

It looks like that your distance column is a list or set. You can try with Column expression node and transform the array (list or set) to string and then extract the last part of the string with right() function of the Column expression node for example.