yerg1 Hi
You may kindly follow the steps outlined thereafter :
1) Go to specific module (default ID in quickstart package- 469) > Content > Content Selection > Select a category In which categories can be selected accordingly from where data is to be fetched to be shown in accordion Zentools) - We have specific categories in default stage currently as shown in screenshot
2) Go to specific category > articles and edit them accordingly. "Intro image" and "Intro text" can be changed which will reflect thereon