When you are using View > Create if you have 'Do not Duplicate Existing Views' unchecked then Revit will give you the result you are seeing. This is because it has a default name for each of these views and as I said in my previous post it has to make the name unique.
Instead of using 'View > Create right click on the view you want to create an additional copy of and select 'Duplicate'. You have 3 options here;
1) Duplicate - this will just duplicate the geometry in the view along with as VG settings that are applied.
2) Duplicate with detailing - this will duplicate the geometry and any annotation on the view (helpful if you have room names etc added to a plan view for instance)
3) Duplicate as Dependant - this will create a 'Child' or 'Dependant' view to the view you have selected. Essentially each 'Dependant' view will have the same settings as it's parent. Use this for instance where you have a plan view split over more than one sheet.
Once you have your view created you rename it as required (by default it will typically add 'Copy 1' to the end of the exsiting name for similar reasons to the above) and change it's Type to get Revit it to file it where you want. The key thing to remember is that within any view category you cannot have a duplicate name.
hope this helps.
K.
"Give a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime."
Maimonides