Allow to edit each cards playback time
Allow to edit each cards playback time.
Some cards don't need a lot of time to present in playback, like introductory cards. But other cards contain a bit more context and you need to offer the audience more time to read the content.
Setting a preset time holistically to all cards can dulls the audience during intro cards if the playback duration is too long and can cause the audience to give up if they can't read the cards with more substance if the playback duration is too short.