How to add line break/shift when pre-populating or putting hint in a value for a field.

When you are prepopulating forms with URL parameters, any special characters must be URL encoded:

http://www.w3schools.com/tags/ref_urlencode.asp

When URL encoding a character, it is turned into its URL friendly counterpart. To have a new line prepopulated with a new line character, you can simply use %0A wherever you need a new line. Similarly, you can use %20 in place of a "space" character.

Simply put, this text:

line 1
line 2

Can be represented by:

line%201%0Aline%202

Here is an example of prepopulating field Tilstede of one of your forms, where prepopulated text is split across different lines:

https://form.jotformeu.com/form/62654760211350?tilstede=line%201%0Aline%202

If you need further assistance, please let us know.