I need frequently to export photos with edits from my laptop and import those into my main computer catalog (Mac OS with LR5). I thought the Export catalog command permitted this but on my last import from such an exported catalog I find no flags or edit history has been retained (although star ratings and the final edit state are retained). I thought that was the point of the export catalog function (otherwise, I could simply copy the folders with the .xmp files and import those). Am I missing some setting? Thanks.