can i daisy chain 2014 MBP to early 2009 imac please?

Hey maccamcd,

Thanks for the question. I apologize for the confusion, but your iMac is not compatible with Target Display Mode (the earliest iMac being "Late 2009", along with OS X 10.6.1 being the minimum system requirement):

Target Display Mode: Frequently Asked Questions (FAQ)

http://support.apple.com/kb/HT3924

A supported iMac with OS X 10.6.1 or later. The table below shows iMac computers that support TDM, the required cables, and the port of the computer to which you are connecting the iMac.

iMac Model	Cable Supported	Port on Source Computer
iMac (27-inch Late 2009)	Mini DisplayPort to Mini DisplayPort	Mini DisplayPort or Thunderbolt
iMac (27-inch Mid 2010)	Mini DisplayPort to Mini DisplayPort	Mini DisplayPort or Thunderbolt
iMac (21.5-inch, Mid 2011)	Thunderbolt to Thunderbolt	Thunderbolt
iMac (27-inch, Mid 2011)	Thunderbolt to Thunderbolt	Thunderbolt
iMac (21.5-inch, Late 2012)	Thunderbolt to Thunderbolt	Thunderbolt
iMac (27-inch, Late 2012)	Thunderbolt to Thunderbolt	Thunderbolt

On another note, if your iMac was supported, you would need a Mini DisplayPort to Mini DisplayPort cable, instead of a Thunderbolt cable:

Thunderbolt ports and displays: Frequently asked questions (FAQ)

http://support.apple.com/kb/HT5219#22

22. Can I connect a Mini DisplayPort monitor or monitor using a Mini DisplayPort adapter to a Thunderbolt port on my Thunderbolt-equipped Mac?

Yes. A Mini DisplayPort display or a display connecting with a Mini DisplayPort to VGA, DVI, or HDMI adapter will work just like it was connecting to a Mini DisplayPort connector when plugging in directly to the Thunderbolt connector on your Apple computer. Click here for more information on Mini DisplayPort connections and adapters.

Thanks,

Matt M.