Use this procedure if you want to transport parts of a workspace into another workspace. You have to create a propagation list with the Design Time Repository (DTR) console and while creating it specify which sub trees in the DTR workspace to add and which sub trees to skip. If you want further filtering (for example skip all files which end with .xyz ) then you have to remove these files from the propagation list one by one.
Note that if you start transporting on your own (without using CMS) then you have to take care about tasks which normally CMS handles. Especially you have to take care that your transports gets activated and released. Also you should keep in mind that between the workspaces where you do filtered transport there may also be normal CMS track connections configured. Make sure that between the two workspaces between you do filtered transports there are no uncontrolled CMS based transports (Track connections) which transport without any filters.