I got a Lindou wireless kb & mouse set, and a ?? mouse from Tomtop as I needed to replace a failing cord mouse, but neither came with English instructions or docs. Emails and chats and such have failed to provide me with tools to control 5-button settings. I came across a link to X-mouse -- SOLVED! Thangkyewverrahmuch, as the man said. Perhaps I will pass the link on to the puzzled and unhelpful distributors and mfrs.