Does Column Shortcodes support rowspan?

Hi,

Yes, but it’s not really a row span.
You would just use a new set of columns for each row.

For example, say this is your column layout (new line equals new set of column shortcodes):

1 1 1 1
1 2 1
2 2
3 1

The first set is 4 columns of equal width.
The next set combines the two inner-columns.
The third set combines the first two and last two columns, respectively.
The fourth combines the first three columns.

Is that what you are asking?

No, what I need is
1 1 1
1 1
1 1
1 1

With the leftmost column spanning four rows.