Great work on getting it installed. Once you've started the game, you can access MC Command Center by clicking on any computer, your Sim's mailbox, or a Sim themselves. An 'MC Command Center' option will appear, and clicking on that will open the mod's menu. From there, you can explore a multitude of settings. For example, you can adjust Sim behavior, control population, or fine-tune the in-game time settings. Is there a particular feature you're interested in exploring?