Inputs to Feeds, I'm learning some but still need a bit of help

I have emoncms installed, and working as it should, with appreciation to everyone here who helped with that.

I understand about the inputs, and I can use them to set up feeds and log the data, nowhere near what emoncms is capable of but it is a start.  I also understand that these inputs are updated, as they receive data from the monitoring setup, and once the inputs are updated the feeds from those inputs are updated.

What I don't understand is how to set up, and update, "independent" inputs and have the data saved to feeds.  I know I could use and modify some inputs from the monitoring setup that are sent without monitored data, but at some point in the future I would hope to monitor for that input, so I wanted an independent input.  I set it up, and it seemed like it would work.  But I can't know because it won't generate any data because it never is updated.

So would somebody set up a different script or batch file program to send the independent inputs data, which I would think would be 0 for each input, to emoncms on a regular basis?  And would sending this independent data possibly interfere with emoncms receiving the data it is supposed to receive from the monitoring setup?

Thank you for any help with this.