Reorder new custom tab with default tabs


I have tabs in the order below in admin view. Dates is my tab with order=15 whereas rest are default tabs. I want to reorder the tabs so that Dates comes in the second place. 

Content|Belongs To|Dates|Variants

Jan 24, 2019 9:32

The code below overrides the system tab order. However, SystemTabNames has only 6 tabs and for the tabs like "Belong To", it is difficult to figure out the text value and order value as legacy text are also being used e.g. for content the text value is "Information".

[Display(Name = "Dates", Order = 15)]
public const string Dates = "Dates";
[Display(Order = 16)]
public const string Content = SystemTabNames.Content;

Only 3 built-in tabs shown in the link below but not Belongs To, Related Entries, Variants, Assets etc.
Edited, Jan 24, 2019 10:21
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