There are many quick keys in the game but what are your favorite? My top 3 are... 1. "SHIFT + Select" when choosing buildings or units in the city. 2. "ALT + Select" when wanting to make a unit over and over. This works great for spamming religions and corporation units. 3. "CTRL + A" Abandon City is great for deleting those buildings you just don't like or deleting a city that's not profitable to you but you don't want the enemy to take over.