New Dropdown Type - Multiple Selection Dropdown

Currently, Jitbit does not support being able to select multiple items within a dropdown.  We need to be able to mark a ticket with multiple tests which have failed on a device.  We considered using checkboxes but as checkboxes can not be dependent on other custom fields, the user would be presented with hundreds of checkboxes for different tests, as opposed to our current design which filters the list down to only applicable tests based on other dropdown fields.  Would being able to select multiple items with a drop down potentially be a feature that could be added to Jitbit?