The examples I have seen of display functions and McCLIM, it seems like there are two dominant models: one where the user does some commands, and the application pane's display function stays in synch by updating at every command loop (I suppose this is the MVC model); and another where we write code in the commands that directly display stuff (and have to tell the application pane NOT to redisplay itself). Question: what about the case where you want to watch something "out there" that is not under the control of the command loop. I'm thinking in particular about controls applications, where you might want to update a display that shows the current state of the plant. Typically, there will be some process sampling the world at some rate, and wanting to asynchronously update the state display. Has anyone built an application like that using CLIM? Any suggestions for the right model? Thanks! R