yes, in my posts I have featured images. And yes, in the – sidebar area – and – main content area – this slider works (AT Gallery Slider or AT News Ticker)
But I want to choose the pictures by random (NOT by posts, i.e. I want to upload the pictures seperately from disc). I found a solution:
I added the META SLIDER plugin (by “Team Updraft”) and it works well in the – sidebar area -. But In the – main content area – the theme puts this slider always before your recent posts and never after them. So here I cannot choose its position. But for the moment it is ok for me. I am satisfied that I have this META SLIDER working in the – sidebar area – from where I can choose its position.