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Labs features

If Labs is enabled in the Element config, you can enable some of these features by going to Settings->Labs. This list is non-exhaustive and subject to change, chat in #element-web:matrix.org for more information.

If a labs features gets more stable, it may be promoted to a beta feature (see Betas).

Be warned! Labs features are not finalised, they may be fragile, they may change, they may be dropped. Ask in the room if you are unclear about any details here.

Submit Abuse Report to Moderators MSC3215 support (feature_report_to_moderators)

A new version of the "Report" dialog that lets users send abuse reports directly to room moderators, if the room supports it.

Render LaTeX maths in messages (feature_latex_maths)

Enables rendering of LaTeX maths in messages using KaTeX. LaTeX between single dollar-signs is interpreted as inline maths and double dollar-signs as display maths (i.e. centred on its own line).

New spinner design (feature_new_spinner)

Replaces the old spinner image with a new, svg-based one featuring a sleeker design.

Message pinning (feature_pinning)

Allows you to pin messages in the room. To pin a message, use the 3 dots to the right of the message and select "Pin".

Jump to date (feature_jump_to_date)

Note: This labs feature is only visible when your homeserver has MSC3030 enabled (in Synapse, add experimental_features -> msc3030_enabled to your homeserver.yaml) which means GET /_matrix/client/versions responds with org.matrix.msc3030 under the unstable_features key.

Adds a dropdown menu to the date separator headers in the timeline which allows you to jump to last week, last month, the beginning of the room, or choose a date from the calendar.

Also adds the /jumptodate 2022-01-31 slash command.

Render simple counters in room header (feature_state_counters)

Allows rendering of labelled counters above the message list.

Once enabled, send a custom state event to a room to set values:

  1. In a room, type /devtools to bring up the devtools interface
  2. Click "Send Custom Event"
  3. Toggle from "Event" to "State Event"
  4. Set the event type to: re.jki.counter and give it a unique key
  5. Specify the content in the following format:
{
    "link": "",
    "severity": "normal",
    "title": "my counter",
    "value": 0
}

That's it. Now should see your new counter under the header.

New ways to ignore people (feature_mjolnir)

When enabled, a new settings tab appears for users to be able to manage their ban lists. This is a different kind of ignoring where the ignored user's messages still get rendered, but are hidden by default.

Ban lists are rooms within Matrix, proposed as MSC2313. Mjolnir is a set of moderation tools which support ban lists.

Verifications in DMs (feature_dm_verification)

An implementation of MSC2241. When enabled, verification might not work with devices which don't support MSC2241.

This also includes a new implementation of the user & member info panel, designed to share more code between showing community members & room members. Built on top of this new panel is also a new UX for verification from the member panel.

The setting will be removed in a future release, enabling it non-optionally for all users.

Bridge info tab (feature_bridge_state)

Adds a "Bridge Info" tab to the Room Settings dialog, if a compatible bridge is present in the room. The Bridge info tab pulls information from the m.bridge state event (MSC2346). Since the feature is based upon a MSC, most bridges are not expected to be compatible, and users should not rely on this tab as the single source of truth just yet.

Presence indicator in room list (feature_presence_in_room_list)

This adds a presence indicator in the room list next to DM rooms where the other person is online.

Custom themes (feature_custom_themes)

Custom themes are possible through Element's theme support, though normally these themes need to be defined in the config for Element. This labs flag adds an ability for end users to add themes themselves by using a URL to the JSON theme definition.

For some sample themes, check out aaronraimist/element-themes.

Dehydrated devices (feature_dehydration)

Allows users to receive encrypted messages by creating a device that is stored encrypted on the server, as described in MSC2697.

Spotlight search (feature_spotlight) [In Development]

Switches to a new room search experience.

Extensible events rendering (feature_extensible_events) [In Development]

Intended for developer use only at the moment.

Extensible Events are a new event format which supports graceful fallback in unknown event types. Instead of rendering nothing or a blank space, events can define a series of other events which represent the event's information but in different ways. The base of these fallbacks being text.

Turning this flag on indicates that, when possible, the extensible events structure should be parsed on supported event types. This should lead to zero perceptual change in the timeline except in cases where the sender is using unknown/unrecognised event types.

Sending events with extensible events structure is always enabled - this should not affect any downstream client.

Right panel stays open (feature_right_panel_default_open)

This is an experimental default open right panel mode as a quick fix for those who prefer to have the right panel open consistently across rooms.

If no right panel state is known for the room or it was closed on the last room visit, it will default to the room member list. Otherwise, the saved card last used in that room is shown.

Live location sharing (feature_location_share_live) [In Development]

Enables sharing your current location to the timeline, with live updates.

Video rooms (feature_video_rooms)

Enables support for creating and joining video rooms, which are persistent video chats that users can jump in and out of.

Element Call video rooms (feature_element_call_video_rooms) [In Development]

Enables support for video rooms that use Element Call rather than Jitsi, and causes the 'New video room' option to create Element Call video rooms rather than Jitsi ones.

This flag will not have any effect unless feature_video_rooms is also enabled.

New group call experience (feature_group_calls) [In Development]

This feature allows users to place and join native MSC3401 group calls in compatible rooms, using Element Call.

If you're enabling this at the deployment level, you may also want to reference the docs for the element_call config section.

Rich text in room topics (feature_html_topic) [In Development]

Enables rendering of MD / HTML in room topics.

Exploring public spaces (feature_exploring_public_spaces)

Enables exploring public spaces in the new search dialog. Requires the server to have MSC3827 enabled.

Sign in another device by showing a QR code (feature_qr_signin_reciprocate_show)

Add capability to the session/device manager screens to generate a QR code to sign in another device + set up E2EE. This requires the homeserver to have support for MSC3882 and MSC3886 enabled.

Use the Rust cryptography implementation (feature_rust_crypto) [In Development]

Configures Element to use a new cryptography implementation based on the matrix-rust-sdk.

This setting is (currently) sticky to a user's session: it only takes effect when the user logs in to a new session. Likewise, even after disabling the setting in config.json, the Rust implemention will remain in use until users log out.