Hi Jorge,

In the alarmconsole you can right click on an alarm and pick the option "Mask alarm...". Here you can choose to mask only the selected alarm(s).

You can also add the action column "Masking" in your alarmconsole. If you hover the alarm an icon will become visible in that column and when clicking it you can mask the alarm.

Do note that in both cases a popup will be shown to ask what exactly you want to mask.