> For the complete documentation index, see [llms.txt](https://support.senar.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.senar.io/using-senar-studio/tokens-and-qr-codes.md).
# Tokens & QR Codes
To launch a training session that will produce assessment reports, students must scan the QR Code provided by an active SENAR user (Instructor or Manager). This code provides access to all simulators in a defined collection.
When a QR code is scanned into the SENAR application:
* The student can install the simulators of the collection on their device (provided that the instructor grants them access).
* Each simulator of the collection can be used for up to 5 hours over a 12-month period.
* A token is debited from the client’s account collection.
Users (Instructors and Managers) can download their QR Codes - one per collection in SENAR Studio in the "**My Profile**" section.
Details regarding the tokens used can be tracked in the "**Tokens**" section.
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# Agent Instructions
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## Querying This Documentation
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