Making mid animation the first frame?

so i created some pokeballs that fall down randomly with rigid body so i dont have to distribute and rotate each separately. i plan to add more of them and possibly tweak some of their locations.
but i cant do that in mid animation. i dont want them to be falling anymore, i want them fallen down, and make that frame (the 91th) the first frame… (so basically start from there) so it doesnt always load the falling forever before i can do anything with it. can i do that? or is there any other way to do what i want?

(please ignore the weird preview)
ps.: im still new to blender

Can you not just set frame 91 as the start frame in the Timeline?

thats what id like to do! i just dont know how :x