Hi swabygw,

 

If you set this properties in code behind, need use \r\n, like

 

UploadAttachments1.ProgressTextTemplate = "line1 \r\n line2";

 

If you set this properties in the control, need use 
, like below

 

<CuteWebUI:UploadAttachments runat="server" ID="UploadAttachments1" InsertButtonID="BrowseButton"
            ProgressTextTemplate="line1 &#13;&#10; line2">
        </CuteWebUI:UploadAttachments>

 

Regards,

 

ken