Itamar Tzadok

Do you mean the order of the columns or order of entries or both?

Either way not quite possible with the Database module as it just pulls all records from DB in their order and generate the columns in the order of the fields.

It should be possible with the Dataform soon. The CSV export has been refactored as a view type. So the order of the exported columns and their order is set in the template. The exported entries is set by the filter you assign to the display. The filter allows you to retrieve a selected subset of the  entries and to sort them.

hth

Yes. But your requirement is not entirely clear.

Users can upload files to Moodle in various areas and contexts. Even in forum posts as this one. Do you intend to look up files in forum posts?

If you're aiming at one or more designated file repositories, you can use Moodle repositories or modules like the Database activity and then if you still need to develop a search mechnism the task would be much more focused.

hth

Do you mean documents and files uploaded in a Database activity or everywhere in your Moodle? Only your second example relates to the advanced search template of the Database activity. See http://docs.moodle.org/23/en/Database_templates for some more details. If you need to search documents and files everywhere in your Moodle, you need to write a designated plugin to do that.

It could become a toolbox from which modules could be drag dropped into sections. It might also allow you to add to the toolbox preset activities (with predefined settings) that could then be drag dropped into the course as in "plug and play". That could be a significant improvement and time saver for many.  

You can write a local plugin that listens to user_enrolled event and sends you (the teacher) a message. You can take as example the Message_provider plugin that sends a message to admin when someone self registers to the site.

For the second issue, if the user can already enroll in a course and enter it, further information could be simply posted on the course page.

hth