Can I have the following?

I want to embed the count of the number of base alarms in the correlated alarm. See below rule details where I have added the placeholder [count(*)] within the message of the value field so, in theory, the value field in the correlated alarm shows the count of the base alarms. Is this the correct format for this?? If not, what is advised ? I have selected the 'Evaluate value' option as per the documentation.

Thanks

Capture-Placeholder.PNG