GitHub user kayousterhout opened a pull request:
https://github.com/apache/spark/pull/3331
[SPARK-4463] Add (de)select all button for add'l metrics.
This commit removes the behavior where when a user clicks
"Show additional metrics" on the stage page, all of the additional
metrics are automatically selected; now, collapsing and expanding
the additional metrics has no effect on which options are selected.
Instead, there's a "(De)select All" box at the top; checking this box
checks all additional metrics (and similarly, unchecking it unchecks
all additional metrics).
This commit is intended to be backported to 1.2, so that the additional
metrics behavior is not confusing to users.
Now when a user clicks the "Show additional metrics" menu, this is what
it looks like:

You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kayousterhout/spark-1 SPARK-4463
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/3331.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3331
----
commit b7312303b5a526d14b869af2106ffafe4ee4367e
Author: Kay Ousterhout <[email protected]>
Date: 2014-11-18T01:32:27Z
[SPARK-4463] Add (de)select all button for add'l metrics.
This commit removes the behavior where when a user clicks
"Show additional metrics" on the stage page, all of the additional
metrics are automatically selected; now, collapsing and expanding
the additional metrics has no effect on which options are selected.
Instead, there's a "(De)select All" box at the top; checking this box
checks all additional metrics (and similarly, unchecking it unchecks
all additional metrics).
This commit is intended to be backported to 1.2, so that the additional
metrics behavior is not confusing to users.
----
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