On the Map Editor main page, select the Points of Interest Icon.
Select “POI Import” and select the list you wish to access on the left column.
Select the black download button to download your lists as an excel sheet. 
Fill out the POI List and when you are done, save it in your drive, proceed to do the following
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Make sure that the cells of your POI List are formatted as TEXT to make sure that it will not create conflicts. |
Click “Upload a new version”
and you will be re-directed to your drive folders.
Choose the right spreadsheet and click “Open”
Click “Save changes as new version”
To push the changes to be visible in the map, you have to click the “Run Update” button.
Do an import by clicking “Import POI data”.
A dialogue box showing all the changes that are detected will pop up and if you think the numbers are correct, then agree to the Import
To push the system to generate the tiles that carry all the changes you have done in the POI List, click “Start publish process”