Categorize and Group Events and Items

As your timeline grows, grouping helps you break your work into meaningful sections. You can organize the same set of events or items in different ways to highlight different aspects of your timeline in each view.

Grouping visually rearranges how items appear in a view, without changing their dates or hierarchy.

Examples of Grouping

You might use grouping to:

  • See how different parts of your timeline flow together
    For example, grouping events by story arc to see how different threads of your story progress over time.

  • See responsibility or ownership at a glance
    For example, grouping tasks by team members to quickly see who is working on what.

  • Break large sets of items into manageable sections
    For example, grouping hundreds of events into logical sections—such as phases, topics, or periods—so you can focus on one section at a time.

You’re not limited to these examples. You can group items in whatever way best helps you understand your data in a particular view.

Add and View Groups

You can use grouping in several view types in Aeon Timeline:

  • Timeline view
  • Spreadsheet view
  • Relationship view
  • List view
  • Item type sidebar panels

Grouping is configured per view, which means you can:

  • Use different grouping setups in different views, or
  • Apply the same grouping across multiple view types.

This makes it easy to explore your timeline from different perspectives without duplicating or reorganizing your data.

There are three kinds of information you can group by in Aeon Timeline: relationships, item types, and color.

Group by Relationship 

Grouping by relationship lets you categorize events or items based on the people, places, or other items they’re connected to.

For example:

  • Group tasks by the person assigned.
  • Group story events by the character involved.
  • Group historical events by the place they occurred in.

This is a powerful way to reuse the relationships already in your timeline to create meaningful visual categories that support how you work.

Grouping by relationship works especially well when:

  • Events or items need to belong to more than one group, because they may have multiple relationships.
  • You want to switch between different ways of viewing the same data — for example, grouping by character in one view and by story arc in another.

How to Group by Relationship

To create relationships between events, people, and other items, see Connect Events, People, and More →

To enable grouping in a view:

  1. Open the view where you want to use grouping.
  2. Open the Group panel in the view header.
  3. Find the relationship you want to group by, and expand its section if it is collapsed.
  4. Select the related items you want to group by, or choose All to show groups for all options.

Reorder Relationship Groups

When you group by relationships, the order of the groups follows the order of the related items.

To change the order:

  1. Open the related item type’s panel in the sidebar.
  2. Reorder items by dragging them into your preferred order, or
  3. Use the panel’s sort options to automatically sort items by label, color, or date.

Group by Item Type

Item types define what kind of thing each item represents — for example, Events, Characters, Tasks, Locations, or any custom types you’ve created.

Grouping by item type is useful when:

  • You want broad, structural groupings.
  • Each event or item belongs to a single, clearly defined type.

How to Group by Item Type

Grouping by item type uses the item types already defined in your timeline. If you need to add or customize item types, see Customize Item Types →

To enable grouping by item type:

  1. Open the view where you want to use grouping.
  2. Open the Group panel from the view header.
  3. Find the Item Type field, and expand its section if it is collapsed.
  4. Select the item types you want to group by, or choose All to show groups for all types.

Reorder Item Type Groups

When you group by item type, the order of the groups follows the order of item types in your file.

To change the order:

  1. Open Settings.
  2. Select the Item Types tab.
  3. Drag item types into your preferred order.

Group by Color

Colors provide a lightweight way to visually categorize items.

Grouping by color works well when you’ve already used colors to represent different categories of events or items, and you want a quick visual breakdown without adding extra fields or relationships.

How to Group by Color

  1. Open the view where you want to use grouping.
  2. Open the Group panel from the view header.
  3. Find the Color field, and expand its section if it is collapsed.
  4. Select the colors you want to group by, or choose All to show groups for all colors.

Reorder Color Groups

When you group by color, the order of the groups follows the color order defined in your file’s settings.

To change the order:

  1. Open Settings.
  2. Select the Colors tab.
  3. Drag colors into your preferred order.

Work with Grouped Events and Items

Once grouping is enabled, groups appear as their own sections in the view. You can collapse and expand them, and add items directly to groups.

Expand and Collapse Groups

Each group has a header row with an arrow you can click to collapse or expand the group. 

In the Timeline view, collapsed groups show a preview of the events and items inside, so you still get a sense of what’s there.

Tip: Right-click a group header and choose Expand All Groups or Collapse All Groups to quickly open or close every group in the view.

Add an Event or Item Within a Group

You can create new events or items directly inside a group. How you do this depends on the view you’re using:

  • Timeline view: Double-click inside a group.
  • Spreadsheet, Relationship, or List views, or item type sidebar panels: At the bottom of a group, type in the New Item row and press Enter.

The new item automatically matches the group you created it in. 

  • Grouped by relationship: The item gains a relationship to the group.
  • Grouped by item type: The item uses that item type.
  • Grouped by color: The item uses that color.

This makes it faster to create items that are already organized the way you need them.



Move Events or Items Between Groups

How dragging behaves depends on what the view is grouped by.

When Grouped by Color

Dragging an event or item into a different group changes its color to match that group.

When Grouped by Relationship

  • Dragging an item into another group adds a new relationship for that item.
  • The item is added to the new group but not removed from the original group.
  • All existing relationships are kept.

A single event or item can belong to multiple relationship-based groups at the same time. For example, if an event involves more than one character, you can drag it into another character’s group to add that character.

Note for item type groups: You can’t drag items between item type groups. To change an item’s type, select it and change the type in the inspector. If changing the type would remove data (because different item types use different fields), the inspector will warn you before you proceed.



Remove an Event or Item from a Group

When grouped by relationship, removing an event or item from a group means removing that relationship.

  1. Select the event or item to open the inspector.
  2. Find the relationship you want to remove.
  3. Click the … icon and choose Remove relationship.

The item will no longer appear in that group in the view.

More Ways to Categorize Items

Grouping helps visually categorize events or items  in a view. There are also other simple ways to categorize and organize items.

Tags

Tags are simple text keywords you can add to any event or item. You can use them to filter your timeline or quickly find related items later.

Options Lists

Option lists are useful for fixed categories, such as status or priority. You define the available options in settings, then choose one option for each item.

Learn more about Adding Notes, Tags, and Extra Details →

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