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Configure the button as follows:
In the Button text field (4), enter the text that will be displayed on the button.
Note
If there are any event parameters, you can set them in the label text. To do this, in the Button text field, enter $<parameter name>$. For example, if you specify $time$, then the time of the event will be displayed on the button, if you specify $date$ — the date will be displayed, if $user_id$ — the user ID will be displayed (see Database tables reference guide for Axxon PSIM and vertical solutions).
Example of displaying the Button element: