Sankey diagrams

[colleenboyle]

In which part of the interface would this feature applies?

[ ] 1. Load your data
[ ] 2. Choose a chart
[ ] 3. Mapping
[X ] 4. Customize
[ ] 5. Export

Is your feature request related to a problem? Please describe.
Just a few weeks ago I was able to customize the order source and target node variables appeared on the left and right sides of the chart and I can no longer do that.

Describe the solution you'd like
The same option that appears in the Violin plot graph under Customize, Chart, Sort by to allow sort by name

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.