Route/track opacity

Hello,

I would very much like to have the possibility to make the route/track see through (opacity from 0 - 100%) or at least a little button where I can toggle the route/track on/off. The reason for this is that more often than not, when following a route, the map upon which the route is have a dotted line that also shows the route. However, the dotted line on the map is hidden by the route I'm following and very often I get in doubt if I am indeed following the korrekt route. This is mostly when I have downloaded tracks/routes from the net, and I don't always trust those routes. I hope a make a little sense

This feature would also be helpful for me.
Regards,
zapfen