Magic Trackpad. Connected, unable to locate within System Prefs.

Recently purchased a new Magic Trackpad. Connected and works, but it is not recognized within System Prefs. (it searches, but cannot locate) Trackpad is located with BlueTooth dropdown menu.

Restarted and it is plugged directly into iMac (running Catalina 10.15.7)

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Just want to revise and alter gestures and track speed.

Thanks in advance..