Follow along with the video below to see how to install our site as a web app on your home screen.
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check these out, they don't have screenshots but they do go into a lot of detail. If you still can't figure it out it I'll screenshot:
I'm assuming you did the second option from my previous post. as I wrote there, that overwrites all the data in the receiving map.
to merge the data - you will need to use the first method ("to copy one object...") too - copy and paste each object separately (there might be a better way but this is what I know how to do). If you have a lot of stuff to move from one map to the other this will be a major pain, as you need to copy>open map>paste>close map for every single object you want to move...
good luck!
[if it's still not clear check out this tutorial - that's where I learned this...]
