From InstaVR Dashboard, you cannot translate "Add On Screens" text, however to do that, you will need to upload a customized image (With Translated Text) and upload to respective "Add On Screens".
To achieve this, kindly follow below mentioned steps:
1. Open "Branding" tab and select required Add on Screen to home.
2. Select "Click to Add Image".
3. Upload customize image having translated text.
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