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Collections

Updated on August 5, 2026

A collection is a folder where you group related problems. You can create one collection per subject, one per chapter of a textbook, or one for each upcoming exam.

Create a collection

The left panel of My problems shows the Collections tree. Click New collection to create your first one. Type a name — for example, "Kinematics" — and confirm.

You can also create a collection from the context menu of any existing collection: right-click it and choose New folder to create a sub-collection inside it.

Rename a collection

Right-click the collection in the tree and choose Rename. Type the new name and confirm. The change appears immediately everywhere in the app.

Move problems to a collection

To move one or more problems:

  1. Select them in the table using the checkbox on each row.
  2. Click Move to... from the row's actions menu, or use the action in the multi-selection bar.
  3. In the dialog that appears, choose the destination collection and confirm with Move.

You can also move a single problem directly from its row: open the actions menu (⋮) and choose Move to....

Delete a collection

Right-click the collection and choose Delete. This permanently deletes the collection and all the problems it contains.

Before deleting, move any problems you want to keep to another collection or to My problems.

Frequently asked questions

How many collections can I create? The number depends on your plan. SimuLab will let you know when you reach the limit.

Can I have collections inside collections? Yes. You can nest collections to organize chapters inside a subject, for example. See Organizing with nested collections to learn how the tree works.

What happens to problems if I delete their collection? They are deleted along with the collection. If you only want to remove the folder and keep the problems, move them first to My problems or another collection.

Can I move an entire collection into another collection? Yes, by dragging its name in the tree panel on the left (on desktop). That's how you reorganize the collection tree.

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