Get Code of Column from Object in a Panel

I need to make a panel appear based on a dynamic entity, which could be Contact, Account...

And I also need to be able to have the reference of the names of the fields that are selected and add them to another entity, to form a detail list.

The reference (Code of the column, like "Name", "Description", "Type.Name"...) of the fields can be either from the main entity or related to an entity of a lookup as in the image below. (Contact.Account.Name).

I'm trying to do this, but if anyone knows if it's possible, I'm accepting help.