Groups allow you to organize the individuals in your account. Individuals can be associated with more than one group.
You can create a group by clicking on the Manage tab and then People in the menu on the right side of the page. To add a group under your company, click the name of your organization on the left-hand side under where it says “ Organization Name Groups”. Notice how it is now highlighted in yellow. Underneath there will be an “Add group” option. This group will be available to all managers of your account.
If you want to create subgroups under existing groups, click whichever group you would like to add a subgroup under. Notice how when you click on the group name, it is now highlighted in yellow and the “+ Add Group” option moved to be under the group you selected. Once you have titled the group name, you will have the opportunity to select people to put into the group.