If you are a User Group Representative you'll find the link to the Roadmap on the homepage tabs:

Suggesting a new feature to Student CRM can be done in the box to the left-hand side of the screen on the Roadmap's dashboard:

As you type the feature name, the Roadmap searches the list of existing feature requests so you can see if it's already been requested. You can also add image to your request by clicking the picture icon.

Once your request has been submitted it will show up for others to comment and vote on. A Student CRM admin will add a unique "DHRF" number to aid searching for suggestions.