I hate to mention the opposition, though often features found in other editors would make WeBuilder even better than it is for me, as long as they could be incorporated without too much development time and trouble.
For example, Microsoft Expression Web 4 has a very cool feature where classes names and links in HTML files in code edit view can be clicked and either the relevant linked external CSS file opens with the cursor already at the relevant selector or it jumps to the style block in the head tags with the cursor flashing at the relevant selector there. I realise WeBuilder has a very similar feature with the Related Styles right-click context menu, however this feels a little clumsy by comparison and being able to click directly on the link to jump to the class/selector would be a big time saver for me, and with a lot less clicking. Another way which could take less time to implement yet would be equally as good for me as the above suggestion would be to give us the ability to assign a keyboard shortcut to do the same thing with the existing Related Styles context-menu command; that is, click anywhere in a class name in the HTML code view and hit a keyboard shortcut to jump to the relevant style sheet or style block.
Thank you for your time and consideration.