Sleep and Downloads

[Tester]

Is there a way to use this tool to keep the system from going to sleep if it is downloading ?

So if the timeout is reached ( let us say 20mins ) but another program is downloading, can the timeout be restarted and or wait until downloads are completed ?

Right now I use a different program to keep the system from timing out while there is a certain amount of data download on the network.  I would much prefer to do the same with this tool.

Thanks
Tester