Customizing User Inputs in the Text Slicer Visual on PBI Desktop

[Uttasarga]

Hi Fellow PBI'xers, I've a report that has a Text Slicer Visual (Preview Feature), in which what I want to do is lpad default "0000"  to the user's input, until the point where the input string is 14 Digits in Length.

Example - If the user inputs "1234567", then the text slicer should add leading zeros to this input, thus making it "00000001234567".