With the underlying CIB XML, it is possible to modify the properties of an existing operation -- for example, to change the interval from 30s to 10s, or the timeout from 15s to 60s. A common usage is to temporarily disable an operation on an unmanaged resource (via enabled=true/false).

However, pcs can only remove the operation and add a new one.

This could be implemented as a general "pcs resource op update" command, or, since the enable/disable usage would have the most benefit, we could support just that, via "pcs resource op enable/disable" or via an "--include-monitors" option to "pcs resource manage/unmanage".