Collaborative Threads

xF1 Add-on Collaborative Threads 1.0.1

No permission to download
Compatible XF Versions
Visible Branding
Additional Requirements
php 5.6+
Strongly recommend; Thread Reply Ban Teeth add-on (free) (v1.1.0 or newer)
Strongly recommend; Threadmarks Pro
If Thread Starter Alerts installed; Word Count Search add-on (v1.1.5 or newer) (somewhat depends on XenForo Enhanced Search).
Formally a private add-on for nearly 3 years, this has now been publicly released with the XF2 version.

Enables ad-hoc created groups to share OP-rights to a thread.
  • Admin defined list of what permisions can be shared from the thread starter (some permissions require "masking" where the collaborator has them taken away if they are not in the right group)
  • End-user create groups with different permission sets.
  • Edit marked posts.
  • Trigger author alerts (Thread Starter Alerts add-on) (not yet available for XF2)
  • Manage threadmarks in thread (Threadmarks Pro add-on) (not yet available for XF2)
  • Supports Aggregating forums add-on
  • Manage tags in thread
  • Support for mostly arbitrary permission sharing from the thread starter to collaborators.
    • Requires opt-in code changes to support custom permission implementations.
  • Collaborators will be able to see threads they are members started by other users in forums lacking the "View Other" permission
    • Works with Watched threads & alerts (Including Post Ratings add-on)

Configuration notes
This is a complex add-on, and sharing permissions may require adjusting of the "masked" permission list, and in some cases may require additional integration work.

You must configure permissions for user groups to use this add-on!


  • Start collaborative thread
  • Participate in collaborative threads
  • Join collaborative threads
  • Max Users
  • Max Groups
Management permissions
  • Manage collaborative thread

Reply Bans
To support reply bans please ensure Thread Reply Ban Teeth add-on (free) installed.

  • XenForo 1.5.0+
  • php 5.6+
  • Strongly recommend; Thread Reply Ban Teeth add-on (free) (v1.1.0 or newer)
  • If Thread Starter Alerts installed;
    • Word Count Search add-on (v1.1.5 or newer).
      • XenForo Enhanced Search
      • Elastic Search 1.x to 5.x, NOT +6.x
      • Enhanced Search Improvements add-on
  • Strongly recommend; Threadmarks Pro (v1.5.0 or newer)
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