I wonder you should use special edition CW that has 128k c code size limitation.
in CW10.5, all version(special standard professional ) can support MQX for kinetis.(in older version, only professional edition can support MQX for kinetis) but because special edition has very limit code size limitation and MQX project normally big size, we suggest user use standard or professional edition CW.
you can download CW10.5 evaluation edition to test your MQX project . here is CW10.5 evaluation download link
http://www.freescale.com/webapp/sps/site/overview.jsp?nodeId=015210272600612247
or
you can write to support@freescale.com to request a CW10.5 evaluation license