I evaluated this plugin to see if it could modify custom ticket fields. I tried in a new environment with a text field, and did not see any box to edit.
Rationale for the requirement:
Currently at my organization we use a tool called ScrumWorks? to do agile planning and estimation and I'm looking at plugins for Trac to try to emulate the behavior (rather than using 2 products). In this tool, it displays a list of sprint tasks (SBIs) in a table format with the work remaining. In our agile environment the team does a "daily standup" and updates all values together in the meeting. In Trac we could do this with a custom field and update, but we would have to click each ticket. I was hoping this plugin would allow us to update all tickets from the same screen.
I rate this as a low priority, because I'm still not sure if we would want to use Trac for this, for reasons beyond multiple ticket editing.
Nice job on this plugin, and it's an awesome idea, plus it is great how it requires no configuration and integrates seamlessly.