Squawk code is set automatically when confirming IFR clearance

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Please use this Wishlist Item to change the feature:

Stop setting the squawk code in the cockpit automatically

Currently when you request IFR clearance you are given a squawk code. If you reply to the ATC the squawk code in the cockpit is set automatically. On the other hand if you try to circumvent this by setting the squawk code before responding to ATC, the ATC gets mad with you for not responding quick enough. Can there please be an option to not automatically set the squawk code?