making maps in google – Web Applications Stack Exchange

I recently found out you could make maps in Google my maps to track the route you took.
I have a question regarding making maps. That would be awesome if anyone could help me.
I am wanting to map out the driving directions I took for a trip a few years ago. I am only able to add 10 waypoints though (A – J), then I had to make a new grouping/batch of directions. I was wondering if it was possible to add more destinations direction/points then just 10?

In the photo attached, I want to merge the two groups of directions into one big list.

Screenshot I took of the two directions I want to put together