I just imported all my photos from Picasa into Lightroom 4. The good news is all the keywords/tags painstakingly input on Picasa were properly read by LR4! However, I am finding it a pain to organise the keywords into 'heirarchy' e.g. Barcelona<Spain<Europe, etc using the 'drag and drop' method. The list of keywords is very long (hundreds) and I have to click and hold a keyword, scroll the list down or up by placing the cursor exactly in the right position at the top of the box, find the keyword i want and then drop it in to create the nested keyword.
My question is - Is there a faster way than dragging and dropping?