Hello everyone,

I need a few things in the tree to be customizable whichare as follows:-

1. remove +/- signs and lines from tree

2. get numbering as I, II A, B, C, 1, 2, 3, i, ii, iii etc in the above sequence for nested nodes

3. i want group leaf nodes together under a node and other child nodes grouped together under leaf nodes for the parent node Node1

how can i get these done, is there an example for above features?

Any ind of help will be most appreciated.