There are two ways to do this:
1. Use localization. If it's really a matter of French language for french speakers, you likely have the device in French localization mode. ARIS has been translated into French, replacing all the english words with whatever is defined in https://github.com/ARISGames/iOSClient/ ... le.strings
That said, if we have a gap, please help us fix it with a new copy.
2. For arbitrary relabeling of the button, a developer could add a new ARISjs command. You could then use this new command, right from the main text of the plaque, to set the label. If I had to guess, this would be an easy 1/2 day project for an experienced iOS developer. That's too small for us to setup a contract, but I could ask one of the developers I know if they want to take an evening/weekend job.