    function incrementWindow(uint256 royaltyAmount) public returns (bool) {
        uint256 wethBalance;

        require(
            IRoyaltyVault(msg.sender).supportsInterface(IID_IROYALTY),
            "Royalty Vault not supported"
        );
        require(
            IRoyaltyVault(msg.sender).getSplitter() == address(this),
            "Unauthorised to increment window"
        );

        wethBalance = IERC20(splitAsset).balanceOf(address(this));
        require(wethBalance >= royaltyAmount, "Insufficient funds");

        require(royaltyAmount > 0, "No additional funds for window");
        balanceForWindow.push(royaltyAmount);
        currentWindow += 1;
        emit WindowIncremented(currentWindow, royaltyAmount);
        return true;
    }
