The work on the builder has been progressing nicely (most of the time) and the beta version of the game now also contain the builder. It was deemed that a combined solution was better than a separate DLC. For players on the beta version there will now be options as you press play in steam, only use the ones ending in BETA.
The workshop has been activated and the beta version of the builder can upload airports to the workshop and the beta version of the game can load airports that the player has subscribed to.
While focus has been on the builder there are also some fixes and improvements to the game:
Added button to reset session settings to default settings.
Last used runway configuration for each airport is now saved between sessions.
Push back now has a starting phase of 10 to 20 seconds before starting to move.
If there is a queue with both landings and takeoffs at a runway the tower will now alternate between landings and takeoffs. (Previously, takeoffs were unintentionally prioritized because they can lineup).
Thanks for playing!