If your FMS has fix pages which take landing rwy as a fix, enter it and put 1nm or 2 nm range rings out to the NPA minima range.
Target alt at rwy is rwy elevation + 50'.
1 mile out target is 320' more to maintain nominal 3 degree G/S (NOT 300´/NM!)
2miles is 640' more than threshold and so on.
If the Airbus is equiped with a new FMS which can draw fixes and radiuses..
How Could you benefit from it? to help in reminding you with your decend path calculations instead of putting your self under more pressure with calculating the decend path .. etc ...
any MCDU expert?