Multi-column label parts are available in Express Labels starting with version 3.0.7.
Label Parts can be filtered by Multi-Column when searching for a label part.

After selecting the Multi-Column part when it is not installed in the printer, the label option menu displays the multi-column label.
In the example below, there are 4 columns in the label part.
When the label is added to the editor window, each column is a separate label.
In the example below, there are 4 columns in the label part. There are 4 separate labels, one for each column.