Usability improvement idea: make it easier to discover how to re-center the graph around a new subreddit. I spent several minutes playing around with this, and

Usability improvement idea: make it easier to discover how to re-center the graph around a new subreddit. I spent several minutes playing around with this, and I was just typing in the name of the desired subreddit because that was the only I could figure out. Finally, after much experimenting, I realized double-clicking is the solution. Oh, and a second, related usability idea: if I double-click, don't open the preview sidebar at the right. I can see how the sidebar is useful, but if I'm doing one action, I don't want it to have two effects. Also, I have signaled clear intent to browse the graph, so I want more screen real estate to be devoted to that. EDIT: bonus usability idea/request: clicking on a node brings up the preview sidebar. It'd be nice if clicking on it again (not double-clicking) makes the sidebar hide again.