Hello!
1) Currently, that's not implemented, but it's a good idea: https://github.com/haroldo-ok/choice4genesis/issues/109
2) Implementing computed labels won't be feasible because it is a static language, but a closely related solution would be to implement support for functions: https://github.com/haroldo-ok/choice4genesis/issues/49 When implemented, you would be able to call a function that does something and after the function finishes, it would resume execution from the point where it was called.