We have been with Wrike since 2017 and as a result we've built up quite a few custom fields. For better governance of custom fields, and on boarding of new employees, it would be amazing if there was a text box within the custom field settings to provide a brief definition of the field. This would also be accessible from the Account/Space custom field management table. And another step further would be to have a mouseover of the custom field header that displays this same definition.
Thanks for your consideration!