Redmine

The {{collapse}} macro creates a collapsible section that can be expanded and collapsed interactively in the web interface.
However, there is currently no way to create a link that opens a specific collapse section in its expanded state.
This would be useful when linking directly to a particular collapsed section, especially from email notifications, but it could also be useful in other contexts.

Expected behavior¶

It should be possible to identify a specific collapse section in a URL. When the corresponding page is opened using such a URL, the specified collapse section should be automatically expanded.

For example, a URL could contain a fragment identifier or another suitable parameter:

/some/page#collapse-xxxx

or:

/some/page?collapse=xxxx

The exact URL format is open for discussion.