In the school admin panel, open “For developers” → “Custom code”, the HTML tab (the
“Custom HTML” field). Code from this field is added to the
<head> of every school page before the app loads,
so <script> tags placed here run before the platform interface and can control its behavior.
Changes take effect after the page is reloaded.Custom code can be edited by a manager with the “School Settings Management” permission (
SchoolManageSettings).
The code in the field is limited to 3000 characters.Hiding the “Download the app” banner
By default, the platform shows a system banner suggesting that users download the mobile app. To hide it, add the following to “Custom HTML”:Hiding interface elements
TheexcludeElements parameter lets you hide individual platform interface elements for your school.
Pass an array of element keys:
Available keys
string
Video watch progress: the bar of watched segments under the video player in a lesson and the video watch
progress in the student card (student management section)
All parameters
boolean
default:"false"
Hides the app download banner
string[]
default:"[]"
Array of keys of interface elements to hide (e.g.
videoWatchProgress)Updated: 2026-09-25 14:33 UTC