I have tried everything i can think of and have asked around and also read hours upon hours of documentation and man pages, and still found no solution. This is my last resort. I humbly ask for help.
In kde plasma desktop; How does one
a.) set wallpaper to fit across two monitors and
b.) set the dock bar across both monitors?
It does this very well in xfce and other desktops, is kde the exception? So far everything kde offers I love, but these two things (for me personally) are a must have. If anyone has a solution, I would not only be impressed, I would be in debt to you. For you are the choosen one, lol. Please help. I have no clue where to go next. Thank you.

I waited 5 days before returning to check thinking that would be enough time, and still no answer. I found a wallpaper that looks close enough to a single wallpaper if i use it on both monitors and made 2 dock bars, no thanks to anyone. I've learned my lesson about asking for help. Don't.