CivModern is a mod that provides utility features on the client for Civ-based servers.
It features radar, a macro to hold left (bound to - by default) or right click (bound to = by default), a macro for auto attacking (bound to 0 by default), and a macro for travelling down ice roads (bound to backspace by default). It highlights compacted items, making them easier to spot at a glance. These features can be configured in game by pressing R. The controls can also be modified in your controls screen.
Radar is generally permitted on Civ servers and using it is essentially mandatory in combat. The left click macro is useful for breaking reinforcements without having to hold a key down, and the right click macro is handy for breaking bastions.
Ice roads are one of the fastest methods of transport and the ice road macro will move you down an ice road at the fastest possible speed, while also eating items in your hand automatically, as it is very food-intensive. In addition, it also functions while using boats or horses and essentially holds the forward key for you.