Jennifer Huynh
You can try creating a rule in Adobe launch on library loaded (Page top) event and fire it on Activity URL where you want to run the test (Activity 3)
Add the following custom code for a rule:
document.addEventListener(adobe.target.event.REQUEST_SUCCEEDED, function(e) {
var tokens = e.detail.responseTokens;
if (isEmpty(tokens)) {
return;
}
var activityNames = [];
var experienceNames = [];
var uniqueTokens = distinct(tokens);
uniqueTokens.forEach(function(token) {
activityNames.push(token["activity.name"]);
experienceNames.push(token["experience.name"]);
});
document.cookie="activityName="+activityNames;
});
function isEmpty(val) {
return (val === undefined || val == null || val.length <= 0) ? true : false;
}
function key(obj) {
return Object.keys(obj)
.map(function(k) { return k + "" + obj[k]; })
.join("");
}
function distinct(arr) {
var result = arr.reduce(function(acc, e) {
acc[key(e)] = e;
return acc;
}, {});
return Object.keys(result)
.map(function(k) { return result[k]; });
}
This will store activity names in a cookie
Let me know if this helps 
Thanks,
Gauresh Kodag.