I’m SUPER new at all this, so this might be a really silly question, but…is there any way I can replace the slider with just one photo across the top?
I hope you are well today and thank you for your question.
Yes you can achieve this by assigning the slider category to only one post having the photo as featured image.
Find more information about creating a slider in the following reply.
https://colorlibsupport.com/t/enable-slider-activello-wordpress-theme/#post-37544
Best Regards,
Movin