File: //var/softaculous/monsta/install.xml
<softinstall xmlns="http://www.softaculous.com">
<settings>
<group>
<heading>{{ad_lang}}</heading>
<input type="select">
<select name="language">
<option value="en_us">English</option>
<option value="ar_ye">Arabic</option>
<option value="zh_cn">Chinese</option>
<option value="fr_fr">French</option>
<option value="de_de">German</option>
<option value="de_ch">German</option>
<option value="hu_hu">Hungarian</option>
<option value="it_it">Italian</option>
<option value="pt_br">Portuguese</option>
<option value="ru_ru">Russian</option>
</select>
<head>{{select_lang}}</head>
</input>
</group>
</settings>
</softinstall>