For the screen resolution, I THINK the following tutorial (here), works, even with Windows 10:viewtopic.php?f=66&t=1875#p7671
I do know that Patty used that tutorial and it worked for the Stories series (all three of them) on both Windows 7 and Windows 8.1. There is another file that you MIGHT need for Windows 10, but some people have not. You could try the tutorial, step by step, to see if you can find the files that need changing (be sure you keep backup files of the ones you will be overwriting), to see what happens.
NOTE: if you don't want to work through the whole tutorial, see if you can locate and COPY the files noted in the first part of the tutorial, in your application's program files. Then you can send me a copy of each program file. I would also need the info from your graphics card. Then I could send you back files for you to install, that should fix the problem.
With the camera controls, etc., you could check this out:http://modthesims.info/wiki.php?title=G ... _Shortcuts
It's for TS2, but I'm thinking some of the same shortcut keys might apply to the Life Stories series.
As far as taking screenshots, you can always use Print Screen (with my current keyboard, Print Screen is a FUNCTION key, on the Insert button--it takes using the FN button near my space bar). With Print Screen, you have to paste whatever it is you captured, right away, into something like Paint, GIMP, Paint.net, or Irfanview. With all of those programs, you can leave them running in the background, call up a blank, past in what you copied with the Print Screen key, then not closing any of your pasted-in images until after you've use the Save-As button so you can pick them up later to edit them.