What do you mean by "QMC Activities"?
Here are some pointers to get you started.
CAL Manipulations can be read from the QlikView Server Events logs. See Reading CAL Allocation Details
To track Task creation and modification, you'll need to enable the Audit log in the System->Setup->Management Service tab. then you can read the logs that are created from then on (this is not enabled by default). See Check for when/by who a Publisher task was disabled
To Track QMC Activities you can use Audit Logs, You can build a qlikview Dashboard using Audit Logs as a Source to track every Activity of the QMC.