Thanks for all your inputs.
The problem is - we can only set 1 constraint in the ALT constraint selection. If say at waypoint X(in FMS), we need to be between 4000ft and 6000ft. How can we go about setting it ?
In my previous fleet, we can go 4000A6000B (4000 above and 6000 below) but in airbus we can only set one as far as I can remember.
Thanks