Lightroom two devices?

[RotsaPhotography]

Can anyone help me on setting up and using Lightroom on my Mac air as well as my iMac?

[JP Hess · Accepted solution]

You just download and install the version you have paid for. You install the same way as you did the first time. The two computers cannot share a catalog. Each computer must have its own catalog. Or, you complete your catalog and images on an external drive  to switch between computers.

[Geoff the kiwi]

Personally I have my catalog and previews on a LaCie Thunderbolt drive and image files on various USB drives. Lightroom I have installed on my two MacBooks.

With this set up I can work either laptop, the only thing to do is ensure synchronising of presets, etc.