Buttons and chat box for Mobile

The chat box on mobile is uncomfortable and stiff. It should expand more then it currently does for longer users input, or have an option to use a box like this one when writing.

Buttons are too close together, several times now I've pressed redo instead of copy. Perhaps move copy icon to the top

Pins without using Memory would also be a really good, as bookmarks, don't have to be included in memory.