The ListBoxSplit(x) calling sequence converts a list box value to a list of strings.

$\mathrm{with}\left(\mathrm{Maplets}\left[\mathrm{Elements}\right]\right)\:$

$\mathrm{maplet}≔\mathrm{Maplet}\left(\left[\left[''Pick\; your\; favorite\; Canadian\; capital(s):''\,\mathrm{ListBox}\left['\mathrm{LB1}'\right]\left(\mathrm{sort}\left(\left[''Ottawa,\; ON''\,''Victoria,\; BC''\,''Edmonton,\; AB''\,''Regina,\; SK''\,''Winnipeg,\; MB''\,''Toronto,\; ON''\,''Quebec\; City,\; QC''\,''Fredericton,\; NB''\,''Halifax,\; NS''\,''Charlottetown,\; PE''\,''St.\; John\text{'}s,\; NL''\,''Whitehorse,\; YT''\,''Yellowknife,\; NT''\,''Iqaluit,\; NU''\right]\,\mathrm{lexorder}\right)\right)\right]\,\left[\mathrm{Button}\left(''OK''\,\mathrm{Shutdown}\left(\left['\mathrm{LB1}'\right]\right)\right)\,\mathrm{Button}\left(''Cancel''\,\mathrm{Shutdown}\left(\right)\right)\right]\right]\right)\:$

$\mathrm{result}≔\mathrm{Maplets}\left[\mathrm{Display}\right]\left(\mathrm{maplet}\right)\:$

$$\begin{gathered} \mathbf{if}\mathrm{type}\left(\mathrm{result}\,\left['\mathrm{string}'\right]\right)\mathbf{then} \\ \mathrm{Maplets}\left[\mathrm{Tools}\right]\left[\mathrm{ListBoxSplit}\right]\left(\mathrm{result}\left[1\right]\right) \\ \mathbf{end}\mathbf{if} \end{gathered}$$

$\mathrm{Maplets}\left[\mathrm{Tools}\right]\left[\mathrm{ListBoxSplit}\right]\left(''Victoria,\; BC,Halifax,\; NS''\right)$

$\left[''Victoria,\; BC''\,''Halifax,\; NS''\right]$