feature request: visualization of subtrees not collapsed in replay and monitor mode

[fmros]

It would be very nice if we could visualize the behavior tree not collapsed when using the replay and monitor mode. This would enable the user to not get lost on larger trees.

I may dig into it later.

[NoobTitan]

The behavior tree grows too big if all the nodes are displayed. It's hard to monitor tiny process of the tree node. Any idea to implement the function?