Site Install Failing - Installation Profile Requires Input

I'm attempting to install a site but am receiving the error - DRUPAL_INSTALL_FAILED. Looking at the exceptions object, it seems that the install profile is expecting input. Here is a snippet:

Exception Object ( [message:protected] => Snapshot field is required. [string:Exception:private] => [code:protected] => 0 [file:protected] => /var/aegir/platforms/glossy/includes/install.core.inc [line:protected] => 417 [trace:Exception:private] => Array ( [0] => Array ( [file] => /var/aegir/platforms/glossy/includes/install.core.inc [line] => 342 [function] => install_run_task [args] => Array ( [0] => Array ( [display_name] => Choose snapshot [type] => form [run] => 3 [display] => 1 [function] =>

The installtion profile is for theme called 'glossy' (http://themeforest.net/item/glossy-modern-drupal-theme/1559039). I've been through the process manually and the profile requires user input (it asks which database snapshot you wish to restore).

Is it possible to provide input midway through a site install in Aegir?