Some formats have archive-specific parameters that might need to be set. As of current ark, there is no way for the archive interface to query for this information at the time of adding/extraction is started. Maybe the interface could supply an optional widget that then would be inserted into the add/extraction dialog as an extra option?
*** Bug 250791 has been marked as a duplicate of this bug. ***
Changing the default assignee in the currently open Ark bug reports to me.
Commit 88d4fc6 paves the way for what described here. https://phabricator.kde.org/rARK88d4fc66d62dbbddeed9a26104a199007551c7d9