Initial delay parameter for GUI plotting

[milan-patartics]

When I start plotting I usually use multiple parallel queues, where each queue uses a dedicated temporary device. I delay plots in the same queue using the "Delay" parameter, but to have an offset between the queues, I need to wait and manually start the other queues after a certain time to offset the queues.

It works as expected, but every time I have to restart plotting (on system restart or Chia update) I have to do it again, which is starting to be overwhelming on multiple machines.

So I would really enjoy to have an "Initial delay" parameter in the GUI for plotting, that could delay the first item the queue with the specified number of minutes, so the whole setup of multiple parallel queues could be done once, at the same time. This way people could set an offset to the queue independently from the main "Delay" parameter.

I would find that extremely useful, and I thing it is something that can be implemented fairly easily.

Thanks! :)