Not directly Xonotic related, but this FTEQW based alpha of an simple ingame level editor, could probably be ported to Xonotic as it is pure QC code:
http://forums.insideqc.com/viewtopic.php...786#p58779
Having something like that with nice pre-fab meshes could really revitalize Xonotic mapping
http://forums.insideqc.com/viewtopic.php...786#p58779
Having something like that with nice pre-fab meshes could really revitalize Xonotic mapping