For example:
Instead of creating variable :
address private _devWalletAddress = 0x000000000000000000000000000000000000dEaD; //Burn
You can add this variable to:
function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256) {
uint256 tFee = calculateTaxFee(tAmount);
uint256 tLiquidity = calculateLiquidityFee(tAmount);
uint256 tCharity = calculateCharityFee(tAmount);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity).sub(tCharity);
address private _devWalletAddress = 0x000000000000000000000000000000000000dEaD;
return (tTransferAmount, tFee, tLiquidity, tCharity, _devWalletAddress);
}