I've got a site that uses a lot of server-side includes, because the client has a lot of redundant info all over the place. When I edit these includes in Dreamweaver, the best way to handle it is to use my stylesheets at Design-Time (a feature I just discovered...lol.) But wouldn't it be lovely to be able to apply that Design-Time file to an entire site, rather than have to apply it to each individual file? Any way to do this via extensions? And why oh why is this not a feature?
Honestly, I've never really been tempted to ask for site-wide DT stylesheets, even though I use includes extravagantly. I guess I'm too accustomed to looking at code. You can raise this issue directly with the dev team here -