There is feature request logged in the Public Issues Tracking system. You could vote for the possibility to have custom predefined fields in dynamic data list on that link
. When the release is planned the PITS issues and their votes have huge impact about the features that will be included.
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items