It is possible to enable additional signals to display in the activities panel, and there are some default configurations for Marketo, Yesware, Showpad and Outreach. These and others can be enabled using the internal tools options as per the internal document https://clarius.atlassian.net/wiki/spaces/SSE/pages/1326350371/How+to+configure+SFDC+Task+Activity+signals
Note that for the activity insights to appear then the defined name, displayName, and legendGrouping must be the same and must NOT include spaces, see the sample below
{
"signalType" : {
"name" : "reply_emails",
"displayName" : "Reply_emails",
"interaction" : "RECEIVED",
"activityType" : "TASKS",
"legendGrouping" : "Reply_emails",
"isCustomType" : true,
"customType" : true
},
"enabled" : true,
"lookupField" : "WHAT_ID",
"lookupMode" : "OPPORTUNITY",
"classification" : [
{
"classificationMode" : "TEXT",
"classificationDetail" : {
"fieldName" : "Subject",
"comparison" : "CONTAINS",
"fieldValue" : [
">>"
]
}
}
],
"displayFields" : {
"detail1" : {
"mode" : "EXACT",
"fieldName" : "Owner.name",
"pattern" : ""
},
"detail2" : {
"mode" : "EXACT",
"fieldName" : "Subject",
"pattern" : ""
},
"detail3" : {
"mode" : "EXACT",
"fieldName" : "Who.name",
"pattern" : ""
}
},
"dateFieldName" : "ActivityDate"
}