update with yast

Hi All! This is my first post here. I`m new in RPM based distros, so be patient :-) My question about updates with yast. When I install rpms with yast eg from "packman" or from "guru" sources I want to save then in my local folder. I need this to be able to give updates for other people in my home net. Is there any option for that in yast ? Thanks PS: Sorry for english :-/