More Practice Tool Options

So I was thinking, we have practice tool to test things out. but what if we don't wanna test something on summoner's rift? what if we wanna test something on twisted treeline or (if it becomes permanent gamemode) nexus blitz. The nexus blitz might take more time since you'd probably add a way to select which mode is active and a way to turn off an event, but I feel like it could help with practicing more things. or just testing stuff out