Plot the ten stops for the first part of the journey in Google Maps on the computer. Use the 'send to phone' function, which then takes it & sends your phone a link, which opens Maps on your phone when you click on it. Create the remainders and save the data (e.g. create https://goo.gl/maps/uX... links) & save them. I use Google Keep for mine.Is there a navigation system capable of this on a android phone (Note 8) that won't mess with Bubbler?
When first route is done, go to Keep, pull up link & Maps should have the second part of your route loaded, starting from your present location.
My bike (Goldwing) does have a GPS on it, so the bike GPS gets the GPX route, and my cell phone give me options, a second opinion (Waze) and so forth.