Lightroom doesn't appear via creative cloud app

Question

I have lightroom installed but it doesn't show as a creative cloud app and I have the option to install it via the creative cloud app/installer. How can I move my lightroom installation so that it's integrated in the creave cloud updating/installing system? Thanks
https://www.dropbox.com/s/hd96g7lbvyimev6/Screenshot%202014-04-18%2011.41.27.png

Answer 1

Do you mean that you have the Lightroom perpetual-licence version installed?  As you've found, the CC app isn't smart enough to detect that.  There is no difference between the perpetual-licence version and the CC version except the licence, but if you want to switch to the CC version, you will have to install it again via the CC installer, and yes, it will download the whole G byte of code, and install the identical code over your existing installation, keeping your existing catalog, preferences etc but changing the licence.  As the code is identical, it doesn't make any difference whether you switch to the CC version (which I did) or stay with the perpetual-licence version.  It will matter only when LR6 comes, which will be free with CC but which you'll have to pay for with the perpetual licence. 
Some people have reported that you have to remove the perpetual-licence version before installing with the CC app, but I didn't. 
Once you've done that, then you can update it (if there are any further 5.x updates) either by downloading and installing the perpetual-licence version or via the CC app, and it keeps the CC licence. 
No, it doesn't really make sense to me either.  What you need to remember is that the CC app and installer, and indeed the whole infrastructure behind CC is a bit hokey.  I think it was written by an intern.