Manage attribute help texts
In the administration, select the entry Attribute help texts and choose an attribute from the dropdown menu.
Provide your explanation in the Help text text box. Once you configure the help text for an attribute project members can see the explanation.
However, be aware that the help text will be visible in all projects.
Once you save the help text, users see a question mark item next to the attribute. When they click on it, they see the description.