I feel this one update would drastically change our Wrike usage. If the source for a custom field single select (and multi select) options could be populated by a group of tasks, it would be amazing! Say I have a folder with a Custom Item type for all of my clients, and the Title is the clients name, if I pointed the single select field to that group of Items it would populate the field with the their Names. Can you imagine the use cases for this! If you could point the single select to other fields within the items in that group to use as a data source, you would start getting into CRM territory! Please Please add something like this!