Plugin to "check/uncheck" all matrix blocks while editing entries? I did a brief search and didn't pull anything up. Is there a native or easy way to "check/uncheck" all matrix blocks? We have a considerable number of them and this would be extremely helpful. Thanks.
There's a related feature request for this: "Expand/collapse all" UI for Matrix fields

In that feature request, Brandon Kelly explains how this is already supported (it works very well):


  There is a way to achieve this: Check one of the blocks, then hit
  Command + A to select all blocks. Then click the option button on any
  of the expanded blocks and click "Collapse" to collapse all blocks,
  and vise-versa to expand all blocks.