Recalculate Features in Session File

[grh]

Hallo!

I calculate various features on one audiofile, display them in a nice way and store them in a .sv session file.
When I now change the source audio file, Sonic Visualiser displays the audio data of the new file and the features from the old file.
So my question: is there any way to recalculate all features ?

Or maybe there is an other way to do this? I just don't want to layout all features (and colors etc.) every time I open a new file, because it really takes a lot of time ...

Thanks for any hints,
LG
Georg