1. Possibility to have the option to make an extra text field a 'unique' field - for use in catalogue/listing sites - such as when creating an ID Reference or Product Code.

2. Add check-boxes as an extra field option.

3. Option to have extra wysiwyg editor to replace text areas.

4. Ability to assign more than one Extra Field Group to an Category.

:-)
5. User friendly Tabs/Slides content plugin for K2.

I second 4 and 5.

Also it would be great if there was a way to change the "Additional Information" text that shows up over the extra fields group when published. I'd like to be able to put whatever heading I want there.

And what would be superfantastic would be if extra field groups could be inserted directly into a K2 item anywhere you wanted - if you could control their placement so they didn't always have to go at the bottom of an item but could go, y'know, anywhere.

Or even if there was just an option to place them at the top of an item instead of the bottom, either inside or outside of the introtext. That'd be very useful.

Yes that would be perfect.. In Zoo by Yootheme you can do that, (called Types) much better extra field handling and a lot mor extra fields.. But thats the only thing better in Zoo anyway :)

I think the JoomlaWorks should take a look at Zoo Extra fields and make something like that..

Here's the link to their video demo of "types"..
Extra fields in Zoo

Please joomlaWorks Crew.. Make something like that, because it's superb ;)

K2 - The future!

Chris C. said:I second 4 and 5.
And what would be superfantastic would be if extra field groups could be inserted directly into a K2 item anywhere you wanted - if you could control their placement so they didn't always have to go at the bottom of an item but could go, y'know, anywhere.

Or even if there was just an option to place them at the top of an item instead of the bottom, either inside or outside of the introtext. That'd be very useful.

4. Ability to assign more than one Extra Field Group to an Category.

Strongly agree :). As is, often forced to combine unrelated Extra fields under a single Extra Field group just to be able to use them jointly in queries on a given category.

4. Ability to assign more than one Extra Field Group to an Category.

Strongly agree . As is, often forced to combine unrelated Extra fields under a single Extra Field group just to be able to use them jointly in queries on a given category.

This is possible now by MEFG plugin

Read more information at this page:
Multiple Extra Fields Groups (MEFG)