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Amadeus MUN Command: Move Screen Up by Lines

A complete guide to the MUN command in Amadeus — how to move the screen up by a specific number of lines when working with long displays.

Amadeus displays are often longer than a single screen. Availability lists, schedules, timetables, queue listings, and search results can run past the visible area, and scrolling through them line by line is slow. The MUN command is the Amadeus entry that lets you control the scroll precisely. It moves the displayed screen up by the number of lines you specify, so you can step back through a long display without losing your place or re-running the search. This guide explains what MUN does, its syntax, and when it should be used.

What Does the MUN Command Do?

MUN is the Amadeus GDS command used to move the screen up by a specific number of lines.

Category: Screen Navigation.

It moves the displayed screen up by the number of lines specified.

Unlike the standard scroll commands — which move the display by a fixed amount — MUN lets you set the number of lines yourself. This is useful when a display is dense with information and you need to go back a few lines to re-read a detail you have just scrolled past. It is a purely navigational command: it does not retrieve data, run a new search, or modify anything in the PNR.

Syntax & Example

Enter the command where N represents the number of lines to move up:

MUN

Example:

MU5

This moves the screen up 5 lines. The number at the end of the entry determines how many lines are scrolled — a larger number moves further up the display.

When to Use MUN

Use MUN when you need to move up a specific number of lines instead of scrolling by the default amount. Typical scenarios include:

Going back a few lines to re-read a flight detail you scrolled past.
Returning to the top of a long availability display in controlled steps.
Reviewing a dense schedule or timetable without losing your position.
Stepping back through a queue listing or long report line by line.
Checking a detail at the top of a display before selling a segment.
Comparing entries in the same display that are several lines apart.
Navigating long displays when a full-page scroll would move too far.

How MUN Fits Into Your PNR Management Workflow

A typical session using MUN might look like this:

Open a long availability display with AN or a schedule with SN.
Scroll down through the results to review the flights.
Enter MU5 to move the screen up 5 lines and return to a detail you passed.
Re-read the line and confirm the information.
Continue reviewing the display and choose the option that fits the customer.
Sell the segment with SS.
If a screen is cleared rather than scrolled, use MP to redisplay it.

How MUN Relates to Other Screen Navigation Commands

MUN → moves the screen up by a specific number of lines.
MDN → moves the screen down by a specific number of lines.
MU → moves the screen up by the default amount.
MD → moves the screen down by the default amount.
MP → redisplays a screen that has been cleared.
ACR → redisplays availability for the same or a different date.
AN → opens a new availability request.
RT → retrieves a live PNR from the active database.

The distinction matters: MUN scrolls the display up by the number of lines you specify; MP restores a screen that has been cleared. Use MUN when the display is present and you want to move within it, and MP when the display has been replaced and you want it back.

Important: MUN is purely a screen-navigation command. It does not re-run a search, re-retrieve a PNR, or modify the data on display — it simply moves the visible area up by the number of lines you specify.

If the display has been replaced by another request — for example a new availability search or a PNR retrieval — MUN will scroll within the current screen, not the previous one. Re-enter the original request if you need to bring back that data.

Frequently Asked Questions

What does the MUN command do in Amadeus?

MUN moves the displayed screen up by the number of lines you specify. The N represents the number of lines.

What does MU5 mean?

It moves the screen up 5 lines. Use a higher number to move further up the display.

Does MUN re-run the search or change the data?

No. MUN is a screen navigation command only. It moves the visible area within the current display without retrieving new data or modifying anything.

How is MUN different from MP?

MP restores a screen that has been cleared. MUN moves the current screen up by a specific number of lines.

What if I need to move the screen down instead?

Use the corresponding down-scroll command — MDN for a specific number of lines, or MD for the default amount.

Conclusion

The MUN command is the precise scroll-up tool in Amadeus. Use MU5 or a similar entry to move the screen up by the number of lines you specify, giving you control over how far back you go through a long display. It is a small but useful navigation command for reviewing availability, schedules, timetables, queue listings, and long reports line by line — without losing your place or re-running the search. Remember that MUN scrolls only; it does not retrieve data or modify anything, and it works within the current screen. If the display has been cleared, use MP to bring it back, and if the data has been replaced by another request, re-enter the original entry — for example AN for availability, RT for a PNR, or SN for a schedule. Paired with MP for restoring cleared screens, ACR for redisplaying availability, and the other screen navigation commands, MUN completes your display toolkit and keeps your workflow smooth when working with long screens.