Hi mshideler, don't worry - keeping MoI's UI simple and clean is a big priority.

The UI is actually designed to be expandable already - in the future there will probably be a bunch of new toolbar sections on the right-hand side pane like "Dimension", "Render", "Analyze" , etc... but this should not add a whole lot of stuff right in your face since they will start out collapsed initially, so they'll just be some initially inactive tabs that look like this:



This kind of natural future expansion was one of the big priorities for the initial UI design, it's one reason why it took me quite a long time to do the design as well.

But despite that kind of expandability I still try very hard to incorporate more functions within the existing UI when possible, like making existing commands more powerful and stuff like that.

- Michael