AFCAD Questions

Hi all.Got a few things I'm having trouble with in AFCAD, and was wondering whether anyone might be able help out. (1) I can't bring up a dirt runway. I configure the runway and the associated taxiway elements to Dirt. I get dirt taxiway intersections, but the runway is always grass. (2) The three grass types (Grass, Grass2, Grass3) always resolve with the same texture when making a grass taxiway.(3) Multiple runways will not resolve when using an identicle texture. I'm trying to build in a few unused/inactive runways. If I use the same texture, only one of the runways will resolve in the FS environment. More than one runway will resolve if I use different textures, but that wouldn't be consistent with the airport I'm trying to create.I'm using AFCAD 2.21. It's otherwise a fantastic program!All contributions appreciated.Cheers,Matthew.