The Value matches regex condition will let you restrict an Event based on a connected Event data. You will have to specify two parameters in order for the condition to work.


First parameter is the connected Event data Value where the second parameter, a regular expression, should be found.


By selecting Page URL as Value and "[0-9]" in Matches regex will restrict the Event to only trigger when any of the characters 0 to 9 are found in the current URL.


Note that this condition must always be wired to an Event data before you can select it as a parameter.


Further reading:

Creating your first events