These areas include standardizing indexes for light clients, PSBT support for sending and spending silent payment outputs, and developing a silent payments descriptor. The motivation behind forming this working group stems from the observation that many of these discussions are currently scattered across various forums and at a stage where drafting BIPs (Bitcoin Improvement Proposals) or initiating mailing list posts might be premature. Therefore, consolidating these discussions within a working group is seen as a strategic move to foster focused and efficient progress on these fronts.