When trying to press on the + or - characters to expand or collapse a node in the tree it’s easy to miss the click area. The keyboard gets thrown onto the screen and the document goes into edit mode. Can the button area be increased?
Do you have Pro? Here is custom CSS you can increase the numbers until the box is big enough. I didn’t test it much, just grabbed it from inspect tool.
.is-mobile .node-icon.mod-expand-collapse {
padding: 4px 7px;
margin: -4px 0;
}