Hi Nick,
Thank you for this suggestion. We can certainly see the utility in being able to add additional barriers without having to merge them all into a single shape beforehand.
We've logged this suggestion for the rest of the team and will keep you posted on any updates that would include this feature.
Josh
IFTDSS Support Team
Nick Robatcek
When modeling MTT runs, it might be helpful to have multiple options for having a barrier. similar to ability to adding fuel models to the modeling options, it would help to be able to add lines either for line construction purposes or maybe representing a road that is showing up as burnable.