I have looked around on the forum and can't find the answer.  In the multi industry properties there is a start enabled feature.  I have figured out that true means the industry is processing what you bring them.  I have also figured out that false allows you to unload at the industry it just doesn't process anything.  My question is there a way in the driving session to turn the industries off and on? 
I am using the multi Ind str l= 60m en also the 10. I have tested them to make sure they work and sometime later while working on another industry while I am testing it, I will send a train to an old industry that worked before. Simply to get it out of the way. Except when it goes there this time I get that red tick and something is wrong. It seems to be totally random. With over 30 industries on a map random isn't a good thing. The train gets stranded and cannot be moved. The only way I have been able to fix this is to go into the edit route and redo the industry from scratch. On one industry it was 3 times of testing before it worked again. I did the same steps over in all three times it just took the third to stop getting the tick.
				
			I am using the multi Ind str l= 60m en also the 10. I have tested them to make sure they work and sometime later while working on another industry while I am testing it, I will send a train to an old industry that worked before. Simply to get it out of the way. Except when it goes there this time I get that red tick and something is wrong. It seems to be totally random. With over 30 industries on a map random isn't a good thing. The train gets stranded and cannot be moved. The only way I have been able to fix this is to go into the edit route and redo the industry from scratch. On one industry it was 3 times of testing before it worked again. I did the same steps over in all three times it just took the third to stop getting the tick.