Hi Simon, and thanks for your kind words!
Variables and conditions are being requested a lot recently! (Feel free to also fill our short survey here if you haven't already) Even though they are currently last in our roadmap we have done some preliminary work around them in order to:
I cannot currently give you an estimate as to when they will be added, however our plan is to tackle them full-on after our next release (October - November 2020). Cheers!
I've also filled out the survey regarding a feature request for conditional statements and variables that can be used by Play Mode and exported -- as previously discussed in https://arcweave.com/forum/discussion/feature-requests-suggestions/suggestions-on-improvements
Scripting can be a real can of worms, but these four basic things would cover a huge number of use cases: