> For the complete documentation index, see [llms.txt](https://docs.acecentre.org.uk/products/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.acecentre.org.uk/products/relaykeys/using-relaykeys/guides/snap-corefirst.md).
# Tobii Dynavox - Snap
Before you look at using RelayKeys with Snap have you considered [AccessIT 3](https://www.tobiidynavox.com/products/accessit-3)? Its available for TD software and is good! There are some snags - its not multi device compatible and does require the dongle being plugged in.
## Adding an action - calling relaykeys
You need to edit your snap pageset - and create a "General" button - then you can add an action to a button. The action
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