u/Fluid-Frosting-2000

Hi! I really hope you can help me.. I want to create all my slices 90 degrees, first I had an object, then with the modifier array and boolean I cut out the parts. Loose all the parts so they are Free to transform... but I dont know how to make all the slices on a 90 degrees angle. Can you help me? It would mean so much to me. I am struggling for a solution for a couple days now already. Google, YouTube and chatgpt are not helping..