Well, I have wasted your time and am not much further, as I don't have, or want, Google Maps on my computer, and I don't seem to be able to manage these functions on my phone. I never got to anything about setting regional preferences, but I just went around in circles with dietary preferences which I prefer not to set, unable to leave until I turned my phone off. I suspect that we are both right and I shall just have to wait until I get to Spain to see if money amounts show up in euros on Google maps. I am so used to thinking in euros in Spain, since that is how money has always appeared on my phone when I travel, that I just took it for granted until I noticed that prices for accommodation were showing up in $Can on Google maps. I didn't know what to do with it or how to compare prices I had recorded for previously located accommodation. Not a big deal.
I am, in any case, finished my initial efforts at planning my camino: 55 days walking to Santiago: two nights before in Valencia and after in Santiago, two nights in Toledo, Avila and Ourense and an extra half day in Zamora (early arrival). Only two days 30 k or more and I have cut 2 k. off the longer one by choosing a place to stay 2 k. forward on the edge of the town before the longest day. The rest of my 80 days in Spain will be devoted to travelling to where I am serving as hospitalera, doing my two weeks, then to Madrid to return home. I have never tried to plan like this before, but it seems to be coming together, and I can use my planned days off to respond to any challenges, if I must. I have noticed that the 1200 k walk, divided by 55 days walking, amounts to an average of about 22 k a day, which seems quite reasonable. I hope that my new knee holds up. Thanks for all your help.