use that clipboard property as a sourceproperty for apply parse delimited method in activity. 

@AnitaP82If the message is a property in the clipboard, you can use a regular expression or a string splitting function to parse it line by line. For example, if the property value is /String 1 //String 2 /String 3 /String 4 //String 5 /String 6, you can use the @split() function in Pega to split it by /. This will return a list of strings. Then, loop through the list to trim any extra spaces or empty strings. Alternatively, if using a regular expression, use a pattern like [^/]+ to match text between slashes and return each line as a string. In this example, you’ll get six strings: String 1, String 2, String 3, String 4, String 5, and String 6. Both approaches ensure each line is returned as a clean string for further processing ​​​​​​​