thanks for the great software. Please don’t listen to the few idiots who complaint about it. In fact I think no changes will be needed in a long time(20 years :D).
Here is 1 suggestion from me:
select a hierarchical sheet or multiple components in the schematic(Eeschema) and right-click -> exclude from PCB.
For those who didn’t follow the link, this should be possible in 6.0 because it will be possible to select symbols and mass edit the fields. It will be a more generic and a bit more complicated solution, not exactly a one-click solution.