## Features & Development

### Re: Using multiple source files for a single problem

by Gavin LaRose -
Number of replies: 0
Hi Davide and Danny,

For versioned problem sets only (that is, for Gateway/Quiz assignments), it's also possible to select from a group of problems by giving for the problem source file the expression
    group:setname
where setname is the name of a problem set that lists all of the problems from which to select. It need not (arguably, should not) be assigned to anyone, as it serves just as a container for the group of problems that are being selected.

Gavin