Well, the version of Logos needs changed ... and it needs to handle a number of related visualizations - concept maps, mind maps, arguments maps - but yet this is a feature I would love but do not expect to see until we can convince Faithlife this is a tool that would be broadly used. Given the degree to which they are used in basic education, I'm sure the day will come but ...
TIP of the day: forum redux on mind maps, concept maps, etc. ...