Yes, that feature still exists but it is now called Shorten Route. See the following How-To Guide for more details: How To Truncate Or Crop A Route
There isn't any way to change the privacy status of multiple routes at at time though I'm afraid.
Just found this feature via a forum search, does it still exist?
Is there a way to mass select routes to make private, as Plotaroute doesn't allow a privacy radius so therefore I'd like to make all my routes private? Thanks.
If you're concerned about privacy and don't want to share routes that start from or finish at your house, you can now use the new "Delete Homestretch" function in our route planner to quickly and easily delete short sections from the start or end of the route. Simply select the "Delete Homestretch" option form the Plot menu in the route planner and then drag the start and finish markers to new positions further along the route.
This will hopefully be particularly useful for routes that have been uploaded from a GPS device, where you may want to track your exact distance on your GPS but not want share the whole route publically.