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Amadeus MU Command: Move Screen Up

A complete guide to the MU command in Amadeus — how to scroll the screen upward to view the previous part of a long display.

When you are working through a long Amadeus display — an availability list, a schedule, a queue listing, or a detailed PNR — the screen scrolls forward as you review each section. Eventually you reach a point where you need to look back at what you have just passed. Perhaps a flight you skipped deserves a second look, or you want to confirm a detail that appeared a few lines above. The MU command is the Amadeus entry that handles this. It moves the displayed screen upward to view the previous part of the information. This guide explains what MU does, its syntax, and when it should be used.

What Does the MU Command Do?

MU is the Amadeus GDS command used to move the screen display up.

Category: Screen Navigation.

It moves the displayed screen upward to view the previous part of the information.

The MU command moves the display by the system’s default scroll amount — usually one screen or a fixed number of lines. For finer control, use MUN, which moves the screen up by a specific number of lines that you choose. To jump directly to the very beginning of the display, use MT.

MU is a purely navigational command — it does not retrieve data, run a new search, or modify anything in the PNR. It simply repositions the visible area so you can review what appeared earlier in the display.

Syntax

Enter the command on its own:

MU

This moves the display up to the previous part of the information. Repeat the command to continue moving up through the display until you reach the top, or use MT to jump to the top in one step.

When to Use MU

Use MU when you want to scroll up and view information displayed above the current screen. Typical scenarios include:

Going back to re-check a flight you passed earlier in an availability list.
Returning to the top of a schedule or timetable one screen at a time.
Reviewing previous entries in a queue listing or long report.
Checking an earlier section of a detailed PNR or history display.
Confirming a detail that appeared above the current position.
Comparing the current entries with those shown a screen earlier.
Reviewing the display again from the beginning without re-running the search.

How MU Fits Into Your PNR Management Workflow

A typical session using MU might look like this:

Open a long availability display with AN or a schedule with SN.
Scroll down through the results, reviewing the flights.
Enter MU to move back up and re-check a flight you passed.
If you need precise movement, use MUN to scroll up by a specific number of lines.
Use MT to return to the very top of the display in one step.
Sell the chosen segment with SS.
If the screen has been cleared, use MP to redisplay it.

How MU Relates to Other Screen Navigation Commands

MU → moves the screen up by the default amount.
MD → moves the screen down by the default amount.
MUN → moves the screen up by a specific number of lines.
MDN → moves the screen down by a specific number of lines.
MT → moves the screen display directly to the top.
MB → moves the screen display directly to the bottom.
MP → redisplays a screen that has been cleared.
ACR → redisplays availability for the same or a different date.

The distinction matters: MU scrolls up by the default amount; MUN scrolls up by a specific number of lines you choose; MT jumps directly to the top; MP restores a cleared screen. Use MU for general upward movement, MUN when you need precision, and MT when you want to reach the top immediately.

Important: MU 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 repositions the visible area so you can review what appeared earlier in the current screen.

If the display has been replaced by another request — for example a new availability search or a PNR retrieval — MU 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 MU command do in Amadeus?

MU moves the displayed screen upward to view the previous part of the information. It scrolls up by the system’s default amount.

Does MU retrieve new data?

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

How is MU different from MUN?

MUN moves the screen up by a specific number of lines that you specify. MU moves the screen up by the default amount.

How do I scroll down instead?

Use the corresponding command MD to move the screen down by the default amount, or MDN for a specific number of lines.

How do I jump directly to the top of the display?

Use MT to move the screen display directly to the top in one step.

Conclusion

The MU command is the standard scroll-up tool in Amadeus. Use MU to move the screen upward and review the previous part of the current information — useful when you want to re-check a flight you passed, return to a detail shown above, or work your way back through a long display. It is a simple but effective navigation command for reviewing availability lists, schedules, timetables, queue listings, and detailed PNR displays. Remember that MU scrolls by the default amount; for precise movement use MUN, and to jump to the top in one step use MT. 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 MD for scrolling down, MUN and MDN for precise movement, MT and MB for top and bottom jumps, MP for restoring cleared screens, and ACR for redisplaying availability, MU completes your screen navigation toolkit and keeps your workflow smooth when working with long displays.