We would also really appreciate such an additional feature.
It would also be helpful if you can add a title for each Activity (for example: “negotitaion with customer XY” or “PO received”, …).
With such a title it is also easy to scroll though all activities in a fast way.
We had this in our former CRM System and we are missing this function.
The benefit of that is that you really have a quick overview about the activities and easy find some entrys.
Also the mentioned sorting function is helpful (for example if you can filter by date, person who created the activity, customized fields, etc.)
This looked in our former CRM like this (but we did not have such a nice “expand all”-function as we have in hubspot :)):
(It is in German but I think you can imagine. And the blue color was just to hide the data).
