I just discovered an undocumented feature on this little instrument.
If you go in into the FG via the "Gen" button, you are limited to 5MHz on sine wave, as per the specifications. However if you go into the full-screen FG via the "Home" menu (short press the power button) you can get the sine function at 10MHz!!

This is with the latest firmware.
I have also verified the new frequency counter is good from 15Hz to 35MHz - well beyond specification.