Adding default ports to subtrees

[ufrhaidar]

Is your feature request related to a problem? Please describe.
Want to use subtrees more often to reduce repeated logic and to better explain sections of code (clean/clear up trees and reduce repeated logic), but in most cases (depending on how many ports the nodes i want to place in a subtree have/use), it takes longer to create the port mappings than to just leave the logic as is.

Describe the solution you'd like
Having the ability to add default ports and values for subtrees. or another button similar to _autoremap that creates ports for all black bord variables used in subtree?

Describe alternatives you've considered
copy pasting prefilled tree. you need to know where it was used. not easy in more complicated trees.

or creating template trees that i can open on the side to copy paste from.

Additional context
Something similar to behaviors/containers in flexbe.

Would be nice to know if people are facing similar issue and what they are doing to deal with it.

[facontidavide]

this is already possible, checj this example

https://github.com/BehaviorTree/BehaviorTree.CPP/blob/master/examples/t14_subtree_model.cpp