Using Photos Cloud Library with iPhoto library on external
I currently use IPhoto on my year old MacBook Air. I have my iphoto library on an external.
i have so many computers and devices that I have put (or streamed) photos to that I must start using a central cloud based photo library To keep it all straight. Can I do this with my library on external? If not, what is easiest and safest way to get my iPhoto library on external changed to Photos library on the cloud?
MacBook Air, Mac OS X (10.7.5), null