Text wrapping
COOLjsTree Professional allows you to wrap long node captions automatically, in both "explorer-like" and "lineless" modes. Option #23 controls wrapping margin (full width of the tree, in pixels), and option #24 allows you to select icon/button vertical alignment (lineless mode only):
var TREE1_FORMAT = [
...
//23. text wrapping margin
200,
//24. vertical alignment for buttons and icons
"top"
...
];