Thanks for that suggestion Peder - we've added that to our Feature Requests list (number 118). Just in case you're not aware, you can already toggle the display of all the routes added to the map using the Trace a Route tool (see switch under Display Options), but not individually.
It would be nice to be able to toogle a traced route on/off and have a legend of the traced routes, possibly in the same box. This feature is particulary usefull if you trace over several alternative routes.
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