Guacamole's terminal emulator currently only allows for selecting text that is currently visible on the screen. It is not possible to select text spanning multiple screenfuls, nor is it possible to continuously select while scrolling.
The terminal emulator should be modified such that:
- Text can be selected from anywhere in the scrollback buffer, even if that region is too large to fit within the visible screen area.
- The selected region can be modified while scrolling is in progress.