So I have a default calendar set up by my work (A). No issues with that calendar.
In the desktop version of outlook, I made a new calendar (B) to use for blocking out time for specific tasks (like writing reports, etc). When I go to scheduling assistant, only the appointments/meetings on the default work calendar (A) are showing up as busy. The appointments on my new calendar (B) are not visible.

From what I've found online, it looks like for appointments to show up on the server and not just my local computer I need to set the default user permission on a new calendar to Free/Busy, but that is not listed in the drop-down for this new calendar (B). However, it is listed under the options for the default calendar (A).

So how do I get that option to show up for this calendar? Or do I have to make the new calendar in a different way? I am just a regular end user, not an admin.