reorganize iphoto and upload to iCloud
A few years ago I organized a big archive of photos in iPhoto on a MacPro - this has all been saved on an external drive as iPhoto data.
About two years ago I started using a MacBookAir which didn't have enough room to carry all the older material, and I've since gained considerable new material.
I'd now like to consolidate the old data with the new. I'd also like all but most recent of this data to remain in the iCloud. I no longer have the old MacPro.
Is there a straightforward way of doing this?
Thanks,
MacBook Air, OS X Yosemite (10.10.2), null