The CMS software we're using has a great feature for advanced post quoting for when you want to reply to several different passages in a Forums post without quoting the entire message and without manually copy/pasting each passage into a Quote box.
Simply hold down your mouse button and swipe to select the passage in the post you're replying to. When you take your finger off the mouse button, a small Quote This link will appear above the passage. Click that link and the passage you selected will automatically appear as a quote in your reply below! You can repeat this as often as you need to. Simple!