vecho wrote:
1. how to place an object (chair etc.) on a slab, so when you move slab the object moves together. how attach an object to a slab?
As Mike says, grouping is the only option here. While there is a gravity function to place things onto slabs, roofs and meshes, there is no other way to tell them to stay there.
2. how to join two objects into one? how do you make one object out of two? table top and its legs etc...
Save as a library part. This can be done from plan or 3D.
