A collection is a group of related cards. Opening a collection gives you a central overview of all information associated with those cards. This means you don't have to open each card individually to view progress, files, or planning.

You open a collection in the same way as you open a card. You can do this from:

After opening a collection, you'll see the collection's progress at the top, followed by the Details, Attachments, and Cards tabs.

At the top of the collection, you'll find a progress bar. This is calculated based on the total number of planned days across all underlying cards. As cards are completed, the purple progress bar gradually fills.

The progress bar also contains two markers:

The Budget tab becomes available as soon as an activity with a budget is added to the collection.

In this tab, you can see at a glance how many hours are available for the collection, how many hours are planned, and how many hours have actually been tracked.

At the top, you can see:

In the top right, you can switch between Time tracking and Status. With Time tracking, you view the budget based on the planned and tracked hours. With Status, you can see the progress based on the status of the underlying cards.

Below the overview, you will find the Budget breakdown. The bar shows how the available budget is divided between tracked, planned, and unplanned hours.

Here you can see:

This gives you a quick overview of how much of a 100-hour budget has already been planned and how many hours are still available.

Below the budget breakdown, you will find Activities. Here you can see the activities that are used on the underlying cards of the collection.

For each activity, you can see how many hours have been planned and how many hours are available within the budget. The bar also gives you a visual representation of this.

You can also see whether the activity is Within budget. Use the arrow on the right to expand an activity and view the underlying cards.

Below Activities, you will find the Progress chart. This shows how the hours develop throughout the planned period.

The chart shows:

This makes it easy to see whether the planned and tracked hours are progressing as expected and how they compare to the available budget.

The Details tab contains all information stored at the collection level. This includes information that applies to the entire collection rather than to an individual card.

At the top, you'll find the collection description. This description is intended specifically for the collection and may differ from the descriptions on the underlying cards. You'll also see the collection deadline, the labels assigned to the collection, and any custom fields configured at the collection level.

This tab also provides an overview of all activities from the underlying cards. For each activity, the planned hours are displayed, giving you immediate insight into the overall planning of the collection without having to open the individual cards.

At the right, you'll find the checklists that have been added at the collection level.

The Attachments tab contains all files associated with the collection.

You'll see the folders that have been created at the collection level, along with the files stored in them.

Under Files to cards, you'll find all files attached to the underlying cards. This provides a single location from which you can access every attachment within the collection. You can also choose to hide these files, as explained below.

In the top-right corner, you can:

The Cards tab provides an overview of all cards and subcards that belong to the collection. By default, the cards are grouped by stage, allowing you to immediately see how work is distributed across the different stages.

Each card displays key information such as its name, description, status, planned date, and assigned resources. For each stage, you'll also see how many cards have been completed and the total number of cards within that stage. This gives you an at-a-glance overview of the progress of the different parts of the collection.

From this overview, you can edit cards directly or open them, so there's no need to navigate away before making changes.

In the top-right corner, you'll find a search box that lets you quickly locate a specific card within the collection. You'll also find the action menu, where you can customize the overview by grouping cards by Stage, Resources, Status or Activity. You can also choose whether all groups are expanded or collapsed by default, and decide whether subcards, recurring cards, and completed cards are displayed.