First Steps: Integration Homematic

Hello everyone, I’m new to the community and a new user of a HomeAssistant installation on a “green”. I am currently working my way step by step into the functionalities – I learn best by diving straight in. To start, I would like to integrate my Homematic CCU2 and have followed this guide: Homematic - Home Assistant. It worked quite well, but some devices’ entities are not correctly recognized (indoor siren, wall switches). I tried to fix this by creating a program in the CCU2 following this guide: Homematic - Home Assistant, but it seems like I don’t fully understand how it works. The program is set up in the CCU2, but the buttons do not appear as entities in the integration. What did I misunderstand or do wrong here? I look forward to getting deeper into this and thank you in advance for your help!

Best regards,
Jo