How to spread data in several adjacent cells (External Data)
You would like to spread/copy the data in one cell to the following ones, here's how
Make sure to be in the Base Alternative/Strategic Alternative/Strategic Building Block → External Data tab.
Once you found the cell from which you would like to copy the data, click on it to select it, right-click, and click on either Copy to End if you want to display the same data until the end of the model, or Copy to Period End if you want to display the same data until the end of the period the cell finds itself in (see this article to learn more about the periods in Weissr models).
In Weissr, you can only spread data horizontally, not vertically.
Changing data in the model might result in changing the color of the background of the cell you modified. See this article to learn more about the color coding used in Weissr.
Changing data in the model updates it and saves it as it is, which often requires about 3 seconds to validate an entry and be ready for another.