To visualize charts ThingShow uses two methods you can choose from - ThingSpeak™ chart web API or MPAndroidChart library. The first one is used by default. Unfortunately it does not support zooming and only one chart can be shown at once. MPAndroidChart library allows to build multiple charts on single screen and supports zooming. The channel ID and the API key is needed to open private channel. To visualize public ThingSpeak™ channel ThingShow automatically embeds widgets from ThingSpeak™ we