Execute a text processing Regex into variable who you want to check if is numeric, add this regex to a new variable: {-Variable.regexTest-}
	
	
	
	
After execute regex, add a block with test:
	
	
	
	
	
	
	
	
		"{-Variable.regexTest-}" == ""
	 
	
	
		
	
 Note: If number contain any type of symbol like decimal separator, the result will be a not numeric.