# Toggle select
The action will toggle a field selection.
A Field can be entered manually or selected by clicking the 
button.
The “Value” parameter can contain a mask. Special symbol **\*** can be used in a mask*.* The **\*** symbol means any combination of characters. E.g. to find items containing ‘air’ substring the following mask can be used: \*air\*. But if you need items which start with ‘air’ substring, the following mask can be used: air\*. The operation is case insensitive.
The “Soft lock” parameter will allow you to override the locked selections.
Qlik expressions can be used in “Field” and “Value” parameters by prefixing each of them with an equals sign.
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# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://help.rbcgrp.com/actions/toggle-select.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.