To expand on Schyken's answer you can find all of the wingpanel indicators made by the elementary team on the Github here: https://github.com/elementary?utf8=%E2%9C%93&q=wingpanel&type=&language=.
Perhaps you can suggest an indicator in an issue or alternatively just use GNOME which has a Removable Drive Menu shell extension.
Before anything, before any input or sudo code in Terminal, I believe it is worth checking in the Apps window, start typing Software and it will show something like Software & Updates.
For me, in the 5th tab, it shows Additional Drivers and from there I could select an unknown device to use dkms source for the r8812au network driver.
Hope this helps ...
I too am a fellow Macintosh / elementary OS (Juno) user. Other than using a Patriot Memory USB drive (which mounts consistently automatically) I may have one other suggestion for you.
This application can be installed through AppCenter. It has the "look and feel" of Apple's Disk Utility program. The only thing you will need to wrap ...