> 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-the-senar-app-and-ar-simulators/avoiding-blocking-situations.md).
# Avoiding blocking situations
The help button is useful for unlocking students when they spend too much time looking for the correct answer. When activated, it displays a pulsing circle on the object or answer to be selected.
When students give a correct answer after activating the help button they don't earn any points.
Help can be activated by tapping on the lightbulb icon at the top of the screen:
{% hint style="info" %}
Some simulators do not include a help button but automatically highlight the correct object/answer after a set period of time, or after one or two wrong answers.
{% endhint %}
---
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