You're right, John, the "L/R" there is a bit misleading. What I actually meant was that you have to close a given runway at both ends for a certain operation so Afcad works correctly.Like you say, I've also found it to be possible to use only one end of a runway only by completely closing the other end hence the 2-afcad solution I offered above for LEMD.

Thanks, glad we are on the same wavelength.John

Alright, I have got two afcad files for north and south configuration. The first one works perfectly but the latter one has some bug. Though rwy 15s are closed for landing (both ends of course) sometimes AI traffic lands at 15R. I also made a separate folder with two afcads for barajas (of course only one active) like ronzie suggested, put them in a higher than Madrid Barajas priority and still AI traffic land at 15R... May it be a fault of some .bgl file, in which landing at 15R is hard coded and because of it, traffic does not 'respond' to closed 15s ?