The command line can be edited in the same way as a string in a dialog box.
Characters typed in the middle of a command line will either be inserted or overstrike existing characters, depending upon the Dialog insert mode. The Dialog insert mode is independent of the Visual Mode insert mode.
After editing the command line press Enter - it is NOT necessary to first move the cursor to the end of the line.
To enter control characters on the command line, first press ENTER CTRL (default: Ctrl-Q) and then the control character, e.g. Ctrl-X or Enter. ENTER CTRL causes the following character to be taken literally, and not to be interpreted as a line editing character or any other special character.
The previous ten or more command lines can easily be reused.
A previous command line can be edited before pressing Enter.
You can easily transfer command lines to and from the scratchpad (text register 0).
For example, you can copy a line of macro language commands from a file to the scratchpad: press T-REG COPY default: Ctrl-F11, select register "0", enter Command Mode, and press T-REG INSERT default: F11.
When using these T-Reg functions at the "COMMAND:" prompt, you are not prompted for the register number; it automatically uses register 0.