Data retention or data life cycle information

good morning Idera community

I have searched on google and as well as Idera wiki documentation, I am unable to find the place to store the data retention or data life cycle information for each Entity. Is there anything available in the tool where i can store this information. If nothing, then the only place i can think of is to add it as text in notes tab which i believe is not of much use because it will be difficult to search and link to the actual data retention processes in place. 

How are you all managing this piece of information in the tool? 

Is it possible to add another "tab" in the Table Editor to capture this information? If yes, please guide on how can i create a new tab?

I am currently using Idera ER Studio 18.0.