Tiling textures takes about 3 seconds to do in Poser, and will reload if saved in your preset (prop, figure, or anything that has materials) the way all settings in materials will.  I'm assuming, of course, that you're tiling the texture and not UV mapping to tile the way Stonemason and other resource conservationists do (maps take up much more resources than polys- they need to be uncompressed to be used).  Don't get me wrong, I hate having to recreate work in general, but it shouldn't be an actual problem. 

So if that is a difficulty for you, I can show you how to do it.  I tile textures in my hair materials all the time.