I usually receive complains from our customers about the BPL and DTL web pages automatic refreshes, it's a common problem among newbies users but for veteran developers too, they forget to save the changes regularly and automatically the web page is reloaded, losing all the work done.
Maybe an autosave would fix this problem that produces a deep feeling of hate and resentment against InterSystems technology among our customers. I've added an idea in our portal, so feel free to vote it!