Existing sensors do not re-scan their available channels after creation. If new hardware, such as Cisco SFP modules, is added later, the corresponding metrics are not detected.

Currently, the only solution is to delete and recreate the sensor, which causes the loss of all historical data.

A "Refresh Channels" or "Re-discover Channels" function would allow sensors to detect newly available metrics while preserving their history. This would be extremely valuable in dynamic environments.

Currently, obsolete channels cannot be removed individually. The only workaround is to delete and recreate the sensor, which also causes the loss of all historical data.

In dynamic environments, such as Cisco devices with removable SFP transceivers, this becomes a real operational challenge. Allowing administrators to manually delete unused channels while retaining sensor history would greatly improve usability and maintenance.

I recently discovered the usefulness of using the Business Process sensor for a specific setup I was looking for. However, I was very disappointed when I found out that I can add new channels to it, but I'm not able to delete any channels. Instead, I have to delete the entire sensor and start all over. This seems very impractical. I did find that the "Sensor Factory" sensor is a valid replacement for it that lets you delete channels, but I find it much more difficult to configure and is not as clean looking as the BP sensor. It also has a very high performance impact compared to only having a medium impact that the BP Sensor has.Having the ability to delete individual channels would add great value in my eyes.

As a Systems Engineer monitoring dynamic infrastructure, I want sensors to automatically hide or remove channels for resources that are no longer active, so that I can focus on relevant monitoring data without manually recreating sensors to clean up outdated channels.

For example, when monitoring server mount points through an EXE/Script sensor, each actively used mount point should have its own channel. Once a mount point is decommissioned, it should be possible to remove its channel rather than having it remain permanently greyed out, which creates UI/UX confusion and makes it difficult to distinguish between active and inactive resources. This would eliminate the need to recreate sensors every few weeks/months for cleanup purposes.

One possible usage scenario could be the following one:
- Click on the channel gear
- Scroll to the bottom
- A red button labeled "Delete channel" is present
- Clicking on it shows a confirmation dialog box
- If we click Yes, the channel and all its associated historical data points are deleted
- If we click No, the channel is not deleted