I don't know if it's a bug or this isn't added still, but it makes the keybor amb mouse compatibility fell unfinshed.
I plug the mouse to my Pixel C via OTG cable. The mouse apears in the screen but when you entrer a world it doesn't turn to the cross in the midle of the screen you aperas on the screen, plus if you scroll, it doesn't scroll through your items, and right click and left click doesn't work properly, one click with one of those and you place a block, hold it and it breaks. The middle buttons doesn't work with the select block.
The keyboard works fine but when you open the xat, you can type a message, but you can't send it with the enter. The enter key doesn't work.
Thanks for your report! This is however a Duplicate of MCPE-10353 and MCPE-9815 – If you have not, please use the search function in the future, to see if your bug has already been submitted, as currently over 47% of tickets are being closed as duplicate.