can i use design mode in fb 4.6 if I add apache flex sdk 4.9.1 as my compiler?

Question

I am running Flash Builder 4.6 and just added Apache flex sdk 4.9.1 (build 1447119) to my mac book pro running Moutain Lion and when i tried to do a quick \'hello world\' an

Answer 1

I confirm the say by wakqasahmed

I changed it at Apache Flex 4.10

    Apache Flex 4.10.0 FP 11.8 AIR 3.8 en_US
    
    4.6.0
    20130801

And the Design mode is enable again!, Thanks