Yes, this is indeed a webview. I did not know about the editable table. I shall look into it.
My original idea was to have a cross platform solution. But if the editable table works for B4i, then it is probably better. In particular, the push up mechanism does not work for cells in the bottom, and I was thinking about some solutions. With a native table, it will be a lot easier.
Just in case someone encountered the same case or webtable in a webview, td editable do not react like input, and the solutions offered at https://stackoverflow.com/a/56235492/971547 do not influence the keyboard behavior.