How can I set Hotkeys for Nexus or Potion to use the multiple mouse triggers? I have looked throughout the settings options, and I have not yet found a way.
Some keys cannot be used for hotkeys in Realm of the Mad God. To use these, you will have to use a program such as AutoHotkey to make it so whenever you press the trigger on the mouse, it sends the key you have set as the nexus/potion hotkey. For example, to make it so right-click takes you to the nexus, the script would look like this (with the default hotkey of r for nexus:
SetTitleMatchMode RegEx #IfWinActive Realm of the Mad God RButton::Send r #IfWinActive