Nice suggestion Charlie. Currently, I have to open each route listed using my condition in a separate tab, and then click it through.
The issue may be that there may not be slots available on some of them. But the solution could be minimalistic, without ton of error reporting. Maybe no more than something like:
"9 of 11 routes succeeded. Total amount spent on slots is $1,500,000"
Then refreshing again the Manage Routes screen with the same condition (after the slots were purchased) would only show the ones that failed, the ones since without slots.