Use a Textbox variable to let users input freeform text at runtime, such as a dynamic filter value or manual override.
General Settings
Same fields as other variable types:
* Name — Internal reference (e.g., $env)
* Label — Display name shown in the dashboard
* Description — Optional help text
Use Cases
Textbox variables are useful when:
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You want to test specific values without listing all possibilities
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You use regex or wildcards in metric filters
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You want maximum input flexibility
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Textbox values must match the expected query format in your panels.
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