Restarting NAS without restarting the NAV instance

Hi everyone,

On Nav 2013 R2, is there a way to restart the NAS service without having to restart the NAV instance?
We have multiple job queues (between 4 and 6) in multiple companies (about 50 companies).
They are all scheduled to run at different time over night.

However, our client would like the possibility to launch it manually when needed, without having to go push the start button on each one in each company.
Is there an easy way to do that?

Thanks
-Julie