Translation of Customizer Texts

Hello,

please let me know how I can tranlate the texts that are set in the Customizer (e.g. Slider Heading Title1, About Us -> Section Description, …).4

I also need help with the video section, I don’t have the box where I can set the link and also the Check Detail Button Text isn’t working in the Rooms Section.

Thank you for your help,

best regards,
Sarah