For copy+paste tool

[roppa]

In editor, when using copy tool, it doesent pick up bridges and grids and all the layers has to be marked to get all the stuff, sometimes i miss 1 layer and when paste, all the grids from that height are missing and have to start all over again. Could be nice to have some option to take all blocks from selected area, like when pressing shift while marking area and it takes all the blocks that are marked, or some other simpler way.