number format

peterlu - There is no built-in function for that. However, you can create a switch case by checking the user language. 

<#assign userlang = rest("/users/id/${user.id}/settings/name/profile.language").value>
<#assing count = 1000 />
<#switch userlang>
  <#case "de">
            <#-- code --> 
    <#break>
  <#case "es">
            <#-- code --> 
     <#break>
  <#case "fr">
             <#-- code --> 
     <#break>
  <#case "ja">
            <#-- code --> 
     <#break>
  <#case "ko">
           <#-- code --> 
     <#break>
  <#case "ch">
            <#-- code --> 
    <#break>
  <#case "it">
           <#-- code --> 
    <#break>
  <#default>
         <#assign formatedNumber = count?string(",##0") />  
</#switch>

${formatedNumber}

peterlu you can also use the "setting" directive of FreeMarker (http://freemarker.org/docs/ref_directive_setting.html) to set a specific locale value.

Something like this should work (untested):

<#setting locale = settings.name.get("profile.language","en")>