Whether you need a new SSID or nor depends on how your Eduroam service is setup. I know here all the participating education institutions have a separate SSID called EDUROAM, specifically for this service. As @ww stated, under Network Access for the Eduroam SSID, select ‘Enterprise with’ option and then ‘my RADIUS server’. You’ll then be able to enter your RADIUS server details further down the page.
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