Let's say I remove latest device monitored by a set of 100 parameters in UnDP collected into one group or template. Why I need to 100 times click "remove"? IMHO there should be an option to remove them all at once:
I've an earlier request in that would automatically disable pollers when their target devices are no longer present. I'd also be up for a set of radio boxes to allow one to add/disable/remove any individual poller.
If removing a device that is managed by custom poller didn't create an error (that's why my feature request concerns), then it would be OK (IMHO) to leave the poller(s) present.
You might find some ideas here: