"WiSPe APs cannot be converted to sensors" True/False?

All, On this Motopedia page it claims that "WiSPe APs cannot be converted to sensors". 1. Is this true? 2. What is the method (if there is one) of converting such APs to be sensors? 3. Is this the reason that the AP300 is still shipped with WISP firmware? I had real problems converting a dual radio AP300 to a sensor a few weeks ago, I tried a switch conversion and using the Windows Convertor tool with no joy, maybe this explains why....I think it needs to be bought to peoples attention...