The “last” parameter tells ShortCodes Ultimate whether the current column is the last column in a group of columns and if it IS the last column, start the next column on a new line.
So if you want to have a two column lay-out, the first column’s “last” value would be “0” and the second column’s “last” value would be “1” since the second column would naturally be the last column in a two-column lay-out.
Another way to think about it is that every column whose “last” parameter is “0” will cause the next column to appear adjacent to it, provided there is enough space.
A column whose “last” parameter is “1” will cause the next column to start on a new line.
For a two column lay-out, set the first column’s “last” parameter to “0” and the second column’s “last” parameter to “1”.
e.g.
[column size="1-2" last="0" style="0"]First column[/column]
[column size="1-2" last="1" style="0"]Second column[/column]
For a 3-column lay-out, the code would be:
[column size="1-3" last="0" style="0"]First column[/column]
[column size="1-3" last="0" style="0"]Second column[/column]
[column size="1-3" last="1" style="0"]Third column[/column]