To activate the VIP feature, you can follow these steps: 

-Click on the VIP button below the Commander's avatar.
-Click on the hourglass icon.
-Various VIP activation items will appear, including those available in your inventory and those you can purchase with gold.
-Use or purchase and use the appropriate activation period. Note that the effects of different periods stack.

Alternatively, you can access your backpack and directly use VIP activation items for a specific duration if you have them. You can obtain these items through events, tasks, and other methods in the game.

Note: You won't be able to benefit from the advantages of the VIP feature unless you activate it.