Do you wish your columns only displayed a specific portion of your data? For example, instead of “CTR” (clickthrough rate), would you prefer to have “desktop CTR” and “mobile CTR”?

You can now tailor custom columns to display specific views of your data, so you can quickly see the information that is most important to you.

Custom columns in AdWords can help marketers get more detailed insights into how their campaigns are performing based on non-standard metric targets. They offer a convenient solution if anyone interested in seeing only part of the data for a metric.

Note that if you try to set up new custom columns or edit existing ones in the old AdWords interface, you’ll get a notice letting you know that the new columns won’t transfer over to the new AdWords interface. Just one more sign that the deprecation of the old UI is coming closer.

As with just about every other new addition to the interface, this update is available only in the new AdWords “experience.”