Facilitate sibling node creation
Currently, Maptini associates every node with a button for creating a child. Since child nodes are selected right after they are created, if we want to create many siblings for one node at a time, the parent must be reselected each time. This is tiresome. The issue could be resolved by adding a second button next to a node, maybe below instead of on either side, which would create a sibling node instead of a child node. I'm sure you devs can come up with even better ideas.