Object Properties ​

Object properties let you link a property to an object type using a dropdown. You select from a predefined object type and can customize the property to support single or multiple selections, two-way syncing, and fixed sets.

Set Up ​

To add an object property, click + New Property and choose the object type you want to link to.

Example: Add an “Author” property to a Book object that links to the Person object type. This creates a dropdown of all people in your space.

By default, the property allows selecting multiple objects from the linked type, with no restrictions.

To limit selection to a single object or a specific set of objects, see the Customizations section below.

Customizations ​

Two-Way Linked Properties ​

Enable two-way linking to sync properties between object types. This is useful for automatically linking two objects together via properties. Here are some example use-cases:

• Linking books (Book) to authors (People)

• Linking Employees (People) to employers (Organizations)

• Meetings (Meetings) to attendees (People)

• Books to topics

To set it up:

• Open the property settings

• Go to the ‘Two-way linking’ section

• Choose (or create) the corresponding property in the linked object type

The connection is handled automatically.

Watch this video to see this in action!

Single vs. Multiple Selection ​

Go to the property settings and find the ‘Single or multi select’ section.

Choose: • Single Object — only one object can be selected

• Multiple Objects — switch back any time if needed

Fixed Set (Custom Dropdowns) ​

Use a Fixed Set to limit the dropdown to specific objects.

This is useful for controlled categories like: • Ratings • Priorities • Media types • Meeting note types

For new properties:

• Click Fixed Set during setup

• Each object you link grows the dropdown list organically. For example your list of statuses will grow as you add more statuses.

For existing properties:

• Go to Property settings > Enable fixed set > Fixed set > Calculate fixed set

• You must click Calculate or all current selections will be cleared

FAQs ​

Can I change the linked object type?

Yes, but doing so removes all previously selected items.

Can I link to multiple object types?

No. Use a text property for that. Learn more

Can I switch between single and multi-select?

Yes. Switch modes in the property settings. Be aware that switching to single-select may remove items if multiple were selected.