In the short view only the intrument names are shown giving you space for two instruments per row in 80 column mode (4 instruments are shown in 132 column mode). An instrument / sample that is currently played is shown in bright cyan. If the sample is played ont the currently selected channel it is shown in bright green. All inactive intruments are drawn dark grey. If a sample has been played once a rectangular dot is placed left to the intrument number.
When the intruments are switched to long mode various information is displayed. From left to right this is as follows:
Often a file includes more instruments than can be shown on the screen. Use <Pgup>,<Pgdown> to scroll through the instruments. If the instrument function is active <CTRL>+{<Pgup>, <Pgdown>} will scroll for a complete page. When inactive you can scroll single lines by using <CTRL>+{<Pgup>,<Pgdown>}. This is very useful if you have enabled more than one textmode function.
The instrument flags (the rectangular dots left to the instrument number) are cleared with <ALT>+<i>. By pressing <Tab> you can toggle between the color mode and pure grey.