The nantu_variations query variable allows you to override test behavior and serve specific variations. The format is straightforward:

1. Test Index: Specify the index of the test you want to modify.
2. Separator: Use a colon (:) after the test index.
3. Value: Choose one of the following options:

• c: Forces the control variation.
• n: Ensures no variation is served, effectively disabling the test.
• vX: Serves a specific variation, where X is the variation number (e.g., v1, v2, etc.).

You can also specify multiple variations for different tests by separating each test configuration with a comma.

Examples #

1. nantu_variations=41:n
   Disables test 41, ensuring no variation is displayed.
2. nantu_variations=1:c
   Forces the control variation for test 1.
3. nantu_variations=101:v1,102:v3
   Forces variation 1 for test 101 and variation 3 for test 102.