A Howto and a few requests below. If someone has a better way to do this, please reply.
To change the size of an Eterm, do this:
1. Right-click on the Eterm window bar. A Window Options menu should appear.
2. In the last item, called Miscellaneous, click on the sub-item called Toggle Fixed size.
Future Eterms you open will be adjustable by grabbing the left, right, and bottom edges of the window.
Requests:
* Windows should have adjustable sizes by default.
* Toggle items should have some indication of which way they are currently toggled, and should give some feedback that they have been toggled. (currently you just have to assume that the setting has changed.)
* Please apply the change to the current window in addition to future windows.