Creating an instance
To create an instance, simply click on the Add Instance button on the top menu bar, or right-click an empty area in the middle of the launcher, and select Create instance. You can then either create a new instance by selecting your desired Minecraft version and modloader, or import an existing modpack by selecting a mod platform from the sidebar on the left.
Editing an instance
Once an instance is created, you can right-click it to open a context menu with some basic settings. From this list, select Edit to access the edit menu.