Table layout

The -t option aligns the words on a grid. The end-of-line characters, if any, are ignored.

Here the entry consists of lines each containing a single word:

...
daren
elvis
...
maury
tully
...

Simplest use (-t alone):

smenu -s dave -t -n 10

Only on 3 columns:

smenu -s dave -t 3 -n 10

On 3 columns but using all the available terminal width

smenu -s dave -t 3 -w -n 10