I'd love to have two sidebars (left, right), and assignable. For example, symbol lists on left, files/project on right. In general, being able to relocate those components (and the terminal) to diffenrent parts of the screen would be a huge advantage
Ticket #581 is a similar request: http://sf.net/p/geany/feature-requests/581/
In addition I would love to hide / collapse all those panels (including the bottom / message panel) with a single click, similar to like other popular IDEs (e.g. MS VisualStudio, PyCharm) have it.
Examples:
- http://www.jetbrains.com/pycharm/webhelp/pycharm-tool-windows.html
- http://www.yevol.com/en/visualstudio/images/wndexpand1.gif (Toolbox collapsed)