yugutou It is not possible to set the weights of multiple meshes at the same time, but it is possible to set the weights of other mesh attachments by referencing the weight settings of a specific mesh attachment using the Weld button added in 4.2.
It is also possible to copy and paste weights. (This is also a feature that was added in 4.2. ) Note that this will not work if the number of vertices selected when copying does not match the number of vertices selected when pasting. Weld can be applied even between mesh attachments with different numbers of vertices, so I think Weld is often more convenient, but I think copying and pasting weights is easier when you want to adjust parts of it.
In addition to copying and pasting weights, it is also possible to copy and paste the list of bound bones.
Unfortunately, we don't have detailed documentation for these features yet, so please don't hesitate to ask if you have any questions about how to use them.
