Hi general_knox,
All of this is possible under WME and not very hard to implement. It's all related to "windows". Just pay attention to the WME documentation, specially to that topic and you'll realized that is very simple. Each windows is like a virtual layer that can contain any picture(s) and also buttons and other controls and you can show it, hide it, move it, click it, etc. as you want. You can have as many windows as you want and they can also overlap.
Examples of windows are the inventory, all the menues, the verbcoin interface, a scumm-bar interface, the dialog boxes, etc.
With the last WME version you have a windows editor that ease the process of creating windows, adding them images, buttons...
Just download some examples to see the code inside!
