Hello brigin,
the tooltips for process nodes and arrows on the exported SVG file are a new feature in e!Sankey 5. (For those who haven't seen it, you
can check it out in this image).
The process tooltip currently shows a simple balance and a list per entry on input/output side. I understand that you would like to see a further breakdown of each entry by source/destination node. In the same manner, the arrow tooltip should have - as an additional information - the name of the source/destination node.
I'll take that feature request into our planning, for sure. Another suggestion we had was to show the content of the supplement text defined for a process node, as an alternative to the process balance. So, I am sure that as we go along releasing new intermediate updates, this SVG tooltip feature will be extended and have more options.
Thanks for your feedback.
Peter