# Groups relationships
SEO Neo introduces an new way of displaying diagrams. The new diagram form is more compact and its more versatile if you understand they way it works.
A group (link group) can be connected with another groups that are located below or above them. Groups below of them are called **children** and groups above them are called **parents**.
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A diagram a group can have **multiple children** but also **multiple parents**.
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A group with multiple children is a very straightforward idea but a group with multiple parents may be confusing at first. Below we will explain how this works.
### Understanding multiple parents
A group with multiple parents is like being multiple groups. This means that if you have a group*A* connected on two parents, the result is like having two groups inside group\_A.
On the example below, on the left we see how diagram looks like and on the right side we see how diagram is really like under the hood.
On the example, **group\_4** seems like a single group, but because it has two parents, in reality its two groups (**group\_4a** *and* **group\_4b**). These two groups are **completely different** groups.
Left side: how diagram looks. Right side: how diagram is under the hood.
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As a rule of thumb, if a group has **N** number of parents, then this group has **N** instances under the hood.
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This may seem more complex to understand as a concept but makes a diagram much more compact (you need less groups to describe a much bigger diagram).
## Sibling Groups
Sibling groups, are **merged group** **which** **share the same parent**. In our previous example **group\_4** contains **group\_4a** and **group\_4b**. These two groups are called sibling groups.
When creating your campaign using diagrams with sibling groups, you can enable "**Hide Sibling Groups**" option to make campaign creation easier. This option - when enabled - **hides sibling groups** and let user **add details for one group** while SEO Neo will use the same data for the other group.
This is a much easier and faster approach of creating a campaign that includes sibling groups.
For more information on using sibling groups [**read this section**](https://docs.seoneo.io/documentation/features/sibling-groups).
