How to manage this template's collapsible groups/sections option
This template includes collapsible groups/sections. When it first appears, one of these groups/sections may be set to be visible ("expanded") while the others remain hidden ("collapsed") apart from their titlebars. To achieve this, include the parameter |name where name is one of the following words that identify the groups/sections (omit any speech or quotation marks):
Paul I
Alex I
Nic I
Alex II
Alex III
Nic II
For example: {{House of Holstein-Gottorp-Romanov |Alex II}}