Does DX NetOps Spectrum support rotating SNMP community strings?
Spectrum itself does not support rotating community strings and they would have to be manually changed.
If the SNMP community changes, create a script (CLI) that would enable you to update the string on multiple devices.
You could also use OneClick locator search and update the SNMP Community attribute on those devices that were updated. If this change affects ALL devices, you may want to consider writing a CLI script so that you can update all devices easier. This removes OneClick from the equation and does it all locally on the SS so performance is not really a factor.