dump of $colors: 
Array
(
    [0] => red
    [1] => yellow
    [2] => blue
    [3] => orange
    [4] => purple
    [5] => green
    [6] => brown
    [7] => black
    [8] => white
)
1
source:
{formtool_checkall name="colors[]"}
{html_checkboxes name="colors" values=$colors output=$colors separator="<br />"}
output:











source:

{formtool_selectall name="colors2[]"}
<select name="colors2[]" multiple size="10">
{html_options values=$colors output=$colors}
</select>
output:


source:

{formtool_moveup save="colors3_save" name="colors3[]"}<br />
<select name="colors3[]" multiple size="10">
{html_options values=$colors output=$colors}
</select><br />
{formtool_movedown save="colors3_save" name="colors3[]"}
<input type="hidden" name="colors3_save">
output:



source:

<select name="colors4[]" multiple size="10">
{html_options values=$colors output=$colors}
</select><br />
<input type="text" name="rename_text" size="10">{formtool_rename name="colors4[]" from="rename_text" save="colors4_save"}<br />
<input type="hidden" name="colors4_save">
output:



source:

<table border=1>
   <tr>
   <td valign="top">
      <select name="colors5[]" multiple size="10">
      {html_options values=$colors output=$colors}
      </select>
      <input type="hidden" name="colors5_save">
   </td>
   <td align="center">
      {formtool_move from="colors5[]" to="colors6[]" button_text="all &gt&gt;" save_from="colors5_save" save_to="colors6_save" all="true"}<br />
      {formtool_move from="colors5[]" to="colors6[]" button_text="&gt;" save_from="colors6_save" save_to="colors5_save"}<br />
      {formtool_move from="colors6[]" to="colors5[]" button_text="&lt;" save_from="colors6_save" save_to="colors5_save"}<br />
      {formtool_move from="colors6[]" to="colors5[]" button_text="&lt&lt; all" save_from="colors5_save" save_to="colors6_save" all="true"}
   </td>
   <td valign="top">
      <select name="colors6[]" multiple size="10">
      </select>
      <input type="hidden" name="colors6_save">
   </td>
   </tr>
</table>
output:

source:

<textarea name="mytext" rows="4" cols="40" wrap="yes" {formtool_count_chars name="mytext" limit="90"}></textarea><br />
limit: <input type="text" name="mytext_limit" size="3" value="90">
output:


limit: