In addition, to the standard related list for campaign items, you can set up the visual force version of the related list Campaign Items on your media campaign record. Why would you do it?
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- Use more than 10 columns fields
- Add filters i.e. not to show optimized and cancelled canceled campaign items
- Sort column values in ascending or descending order
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You can decide whether or not you want to show the new filter buttons or display the new Campaign Item List in Lightning Design. To do so, you have to go to the Overview → Setup & Setting → Feature Settings.
To get all the details on how you can configure your feature settings read here: 8.5.1 Settings for the Campaign Item Related List.
Configure Columns (Version 2.79 and lower only!)
To do that you have to navigate to the field set of the campaign item. Setup → Create → Objects → Campaign Item. Navigate down to FieldSets and open Custom Related List:
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To do so, go to Setup → Create → Objects → Media Campaign. Scroll down to Buttons, Links, and Actions. Override standard view button on media campaign object with 'CampaignItemRealtedListView' visual force page.
