-QA Testing-
# Issue 1
It works too well :(
The fill tool will only fill the touching build helper blocks and unfortunately they often don't touch, filling stops because of that.
{F20409}
In theory, if it looks 1 block further after encountering air, it **should** be able to continue with any current build helper.
# Issue 2
It doesn't care about the "Restrict Building to Helper" setting. It always assumes that option is enabled.