Practice tool & Shit i want

So I love theory crafting fun builds for different champs and perfecting them, allowing champs I don't inherently like (such as Wyndra) so sort of fit my playstyle a little better, often times these builds incorporate stacking items of sorts, such as , id rather not click the fast forwards button 20 times, why cant I just buy a fully stacked rod, and its takes a solid 10-15 minutes of spell casting to fully stack a tear, ((a build for example I'm trying right now is on ) It sounds trolly but work out the details, all items synergize pretty well with her kit) I don't want to waste 20 minutes in a practice tool game stacking a manamune on just to see if it works on his W or E, Also, I want to be able to spawn baron in, to see if my fiddlediddle or nunu build can solo it, spamming fast-forward 40 times seems unnecessary, no?

Closing Statements: I'm not asking to be able to invite my friend into the game so we can see whats stronger Ap Vayne or Magic Pen Darius will win, I'm asking for stuff to legitimately help me practice my theory crafting, sure you can argue to jut try it in game, but dosent that completely ruin the whole point of practice mode? would you want too have a manamune fiddle top in your game, or have a singed trying to flash that really thicc wall up top side (near tri-bush) for 50 minutes, no you don't, I wanna try it on my own, before I deduce that my build has potential to work before bringing it to norms.

Tl;dr

Please let me buy fully stacked items in practice mode, and let me spawn in baron and herald at will just like I can with the drags and other jungle creeps.

Thanks for reading my post ^^ hope you agree, if you do feel free to upvote, if you don't, downvote and tell me WHY you disagree in the comments, I'm open to possibly changing my opinion so long as you give me goof reasons :)