Faruton perhaps you can assist me. I've been trying different ways I can think of but there are issues no matter what. So a couple of solutions that come to mind would rely on you and would of course depend on if you consider it important enough to address or not.
1. Include some way to do some php scripting. I'm not talking full fledged website support, but being able to do file_get, loops, json decoding, etc would work wonders. For the template tab, being able to toggle that to be PHP (vs straight HTML) would do the trick, assuming it's possible.
2. What I'm trying to do is load a customized page from the web and it has a refresh built into it so it updates roughly every 10 seconds. Sometimes, though, the page will fail to load. What I've tried to do is to put it into an iframe so that there's a way to keep the data refreshing even if the page fails to load (since it would still get a refresh). However, when doing this, the area/block I've designated for the source makes a noticeable flash. If the page is simple (no iframe for example) then this generally hasn't been a problem. Anytime I try to have a page-within-a-page, there's a flash issue which is rather annoying. Not sure if there's some way to make it so that an option can be toggled to load content first before updating what is displayed. Or easier, add an option to auto refresh the source every so often :P that would definitely work for me. lol
3. In relation to #2, before the last CLR update, it would be seamless (the page autorefreshing would happen but you wouldn't really notice it unless there was a noticeable change in the content). Now, it tends to clear away and load. Not sure if any of what I've said makes any sense though I could show you examples of it. Almost has me thinking of reverting to the previous version.
Oh and before I forget, this plugin is REALLY nice. Makes a lot of things easily possible. Keep up the good work dude.