How can i use Reaktor 6.5 as a vst on FL Studio?

Hello!

Im try to use Reaktor 6.5 on FL Studio but only happened with this new version when i try use as VST. When i open it ( open a shell to choose Reaktor 6 or ReaktorFX ) when i choose Reaktor , he send to Mixer as a Fx and cant record )

How can i fix this? im try to record , and use on piano roll