VK
Open a channel → Broadcast settings. Fields depend on the platform, valid authorization and plan. If the window is unavailable, check the connection, role and selected scheduled broadcast. Apply edits with Save.

The title limit is 128 characters; the description limit is 5000. Choose a category and a subcategory where offered. Check the subcategory again after changing the category.

Configure video access, comment access and playlist. The playlist is not updated during a broadcast. Wall posting is currently displayed as unavailable and cannot be enabled from this form. Use scheduled-broadcast selection for an existing event.