# Ask for a parameter value Control / params A variant of [Set parameters](https://meridian.online/operations/set-parameters). Expose a typed input on a reusable component or app, such as a checkbox, a number or a file picker, whose answer becomes a variable. Page: ## Status Not built yet. arcform does not do this yet; it would live in how a Protocol runs. [Its place on the roadmap](https://meridian.online/roadmap#set-parameters) ## What other tools call it Meridian's classification; an independent blind rating agreed on 95.7% of 324 rows (variant, version 3). - Alteryx Designer: [`Action`](https://help.alteryx.com/current/en/designer/tools/interface-tools/action-tool.html) (read 2026-09-27) - EasyMorph: [`Uploaded files`](https://help.easymorph.com/doku.php?id=transformations:uploadedfiles) (read 2026-09-27) - KNIME Analytics Platform: [`Boolean Configuration`](https://api.hub.knime.com/nodes/*dr5cJvxySHU1zdzY?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`Column Filter Configuration`](https://api.hub.knime.com/nodes/*Ge3ifJVWrljXb6lf?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`Column Selection Configuration`](https://api.hub.knime.com/nodes/*dTMeLCKw2YLHEo-V?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`Credentials Configuration`](https://api.hub.knime.com/nodes/*haMRciFKnyFk1hpJ?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`Date&Time Configuration`](https://api.hub.knime.com/nodes/*TnYixcG9Gn7G9uV9?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`Double Configuration`](https://api.hub.knime.com/nodes/*NyThe-9Rw3KExoo8?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`Integer Configuration`](https://api.hub.knime.com/nodes/*cZyQHSZiU7jfyyMv?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`Integer Slider Configuration`](https://api.hub.knime.com/nodes/*b2-vpS4aTvgnZ2Ln?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`List Box Configuration (legacy)`](https://api.hub.knime.com/nodes/*_CmU_d-RenFd4woF?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`Local File Browser Configuration`](https://api.hub.knime.com/nodes/*B0qzU1dP_pbWKt7n?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`Multiple Selection Configuration`](https://api.hub.knime.com/nodes/*XOmekWxEOWUVNZek?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`Nominal Row Filter Configuration`](https://api.hub.knime.com/nodes/*_y7zBbSqwaOzkJQ-?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`Repository File Chooser Configuration (legacy)`](https://api.hub.knime.com/nodes/*SdetSqkfS3qOu9Hf?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`Single Selection Configuration`](https://api.hub.knime.com/nodes/*gJS7Hsu8qQKDt4yT?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`String Configuration`](https://api.hub.knime.com/nodes/*FsKQyZVQLHoanA6X?details=full) (read 2026-09-27) - KNIME Analytics Platform: [`Value Selection Configuration`](https://api.hub.knime.com/nodes/*lvXrU4xX1RwTYpUk?details=full) (read 2026-09-27) - RapidMiner Studio: [`Attribute Parameter Macro`](https://docs.rapidminer.com/latest/studio/operators/extensions/Custom%20Operators/parameter_helper/attribute_parameter_macro.html) (read 2026-09-27) - RapidMiner Studio: [`Boolean Parameter Macro`](https://docs.rapidminer.com/latest/studio/operators/extensions/Custom%20Operators/parameter_helper/boolean_parameter_macro.html) (read 2026-09-27) - RapidMiner Studio: [`Category Parameter Macro`](https://docs.rapidminer.com/latest/studio/operators/extensions/Custom%20Operators/parameter_helper/category_parameter_macro.html) (read 2026-09-27) - RapidMiner Studio: [`Datetime Parameter Macro`](https://docs.rapidminer.com/latest/studio/operators/extensions/Custom%20Operators/parameter_helper/datetime_parameter_macro.html) (read 2026-09-27) - RapidMiner Studio: [`Directory Parameter Macro`](https://docs.rapidminer.com/latest/studio/operators/extensions/Custom%20Operators/parameter_helper/directory_parameter_macro.html) (read 2026-09-27) - RapidMiner Studio: [`Double Parameter Macro`](https://docs.rapidminer.com/latest/studio/operators/extensions/Custom%20Operators/parameter_helper/double_parameter_macro.html) (read 2026-09-27) - RapidMiner Studio: [`File Parameter Macro`](https://docs.rapidminer.com/latest/studio/operators/extensions/Custom%20Operators/parameter_helper/file_parameter_macro.html) (read 2026-09-27) - RapidMiner Studio: [`Integer Parameter Macro`](https://docs.rapidminer.com/latest/studio/operators/extensions/Custom%20Operators/parameter_helper/integer_parameter_macro.html) (read 2026-09-27) - RapidMiner Studio: [`Process Suggestion Parameter Macro`](https://docs.rapidminer.com/latest/studio/operators/extensions/Custom%20Operators/parameter_helper/process_suggestion_parameter_macro.html) (read 2026-09-27) - RapidMiner Studio: [`Repository Location Parameter Macro`](https://docs.rapidminer.com/latest/studio/operators/extensions/Custom%20Operators/parameter_helper/repository_location_parameter_macro.html) (read 2026-09-27) - RapidMiner Studio: [`Text Parameter Macro`](https://docs.rapidminer.com/latest/studio/operators/extensions/Custom%20Operators/parameter_helper/text_parameter_macro.html) (read 2026-09-27)