@epriestley A typical search form like bugzilla for example covers many needs, with saving them it's quite OK. For complex cases (when user wants OR insted of AND somewhere?), yes, logical expressions are the popular and known way.

@epriestley I just gave a solution at the UI level, which is similarly limited to, say, Thunderbird filter creator: http://meets.radp.org/images/ThunderbirdSubjectFilter.jpg

That's a valid usability question. One of the solutions could be that a [+ Search in custom field] combo box appears, and I am able to select value from a set sorted nicely by (project, field_name). The logic could be then like: if I picked (Marketing, Ad_type = TV) and (Development, Testing_scenario LIKE 'by hand') this would mean:

Split by space -- that's much better than nothing!

@epriestley thanks for the statement. We (at KDE) have to take this into account at this (testing) stage.

This isn't the same as subprojects support. I gave example of a custom field called component but any custom field has the same issue: it's not per project, it's global. This way it's not possible to have a hosted instance with custom fields beign really custom for projects.

Custom fields added according to https://secure.phabricator.com/book/phabricator/article/custom_fields/