Recently, I again ran into this problem, and this time the answer came to me very quickly; just set a couple of constants:
Friend Class CompilerUtils
Public Const Browsable As EditorBrowsableState = EditorBrowsableState.Never
Public Const BrowsableAdvanced As EditorBrowsableState = EditorBrowsableState.Never
Public Const Browsable As EditorBrowsableState = EditorBrowsableState.Always
Public Const BrowsableAdvanced As EditorBrowsableState = EditorBrowsableState.Advanced
End Class
Then in your code, decorate the element as follows:
<EditorBrowsable(CompilerUtils.Browsable)> _
<EditorBrowsable(CompilerUtils.BrowsableAdvanced)> _