Creating reports based on user submitted variables

I am playing with phprunner, and think it may be quite useful, but I have a couple of questions;
a) can you create a report that prompts for user input (say,a date) and uses that as part of the SQL query , e.g. to report on records between two dates, etc
<img src='https://asprunner.com/forums/file.php?topicimage=1&fieldname=question&id=11122&image=1&table=forumtopics' class='bbc_emoticon' alt='B)' /> I have created master / detail relationships between fields in tables, but in 'edit' mode I can't figure out how to show the field as a drop down list.
Are either of these things possible?