You can create/maintain/display a structure in SE11.
Also you can navigate to a SAP object through SE80 Object Navigator.
Another useful search facility I have used is through the link below. It can search for SAP objects, like tables, structures, programs, function modules, etc related to a table or structure. When you display the fields for a table, it also shows any Check table for a field.
However it has no link to help info re:a field; also it can not search for an object defined in a program based on a structure or table.
For example, for CC1ERH, one of its search hits is program RPTCCXDBDEL Delete Time Events