No way to use OR statements and a add node bug!

[Adam27092008]

While using the statemachine, I found that there is no option for "or" statements. What I mean is that when you need to check if either one of two requirements are met instead of checking if both requirements are met. Is there something I missed. BTW, there is a bug I found, there are two state-machine player nodes and two stack player nodes when you use the add child node. What I mean is:
Some node
Animation player
Stack player
Stack player
State-machine player
State-machine player
Tween
Some other node
Some other other node

[imjp94]

"Or" statement is not supported yet, current workaround would be simply comparing with "or" statement in script.
It will be supported in the form of "ExpressionCondition"(#31).

While for the bug, would you mind to upload a minimal reproduction project?