Hi DerekH,
At the moment, changing the ARP & Mac Address Aging Timers are not an available feature.
We take our customer feedback seriously and would encourage you to submit a feature request.
You can make a feature request by going to the bottom right-hand corner of any dashboard window and send the request through the "Give A Feedback" button.
Any wish that is made, sends an email to our Product Managers and Development Teams. These wishes are taken into consideration and are used to help shape our product roadmaps. The most wished-for items are incorporated into product development.
https://documentation.meraki.com/General_Administration/Other_Topics/Give_your_feedback_(previously_...
If you have any questions, please don't hesitate to contact us.
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