The command New Gobo Eiffel Terminal opens a pre-configured terminal with Gobo Eiffel’s environment set up, so you can run commands directly.

This command is available in the Command Palette. Open the Command Palette
with Ctrl+Shift+P (or Cmd+Shift+P on MacOS) and type Gobo Eiffel to see
available commands for this extension.
The same command is also available from the right-click contextual menus for
Eiffel files (.e) or ECF files (.ecf) in both the Editor and Explorer
panels.