NWBC HTML - Multiple Selection Dialog box

Hi

Im wondering if anyone has come across this. When I execute a transaction in NWBC for HTML, I am not seeing all the icons that are available in the SAPGUI for the multiple selection dialog box.

In NWBC for HTML I get the below options:

But in the SAPGUI I have the following options:

Any ideas how to get this to be the same as SAPGui in the NWBC for HTML ?

Thanks