"任你自由支配" can be translated into English as "at your full disposal" or "entirely at your disposal".
Both expressions convey the idea that something is completely available for someone to use or manage as they wish. For example:
"The funds are at your full disposal." （资金任你自由支配。）
"The car is entirely at your disposal for the weekend." （这辆车周末完全归你使用。）