My main question:
I want to send bitcoin to several addresses, and the amount is the same. Is there any way to do that?

Second question, not that important:
I also want to divide the whole amount to let's say 8 and send the whole thing to 8 different addresses, and the gas fees, etc. make it complicated. It would be nice if the method calculated the fees and subtract from the money sent, and makes it equal for all addresses.
I don't want to hear things like: just use a calculator, I am perfectly capable of doing that, but gas fees, etc. take time, if there is something automatic, why not use it, right.