Hi José,
Client Automation can monitor the usage of an application on the workstations via the software usage plugin.
What this plugin does is checking if an application is running on the workstations by checking if it is started and/or stopped.
This helps to find out the numer of users simultaneously running the application so you can adquire the correct number of licences.
What it does not do is tracking the time the application is started or 'in focus' (this is being actually used) by the user, as in multitasking environments having an application in execution not always means actually using it.
Please, let me know if this answers your question or you need further help.
Best regards,
Jordi.