I know I can build a multiline ToolTip from code (using CRLF) but I was wondering if there was a way from Scene Builder. The issue I'm having is that when I specify the ToolTip in the code, this seems to reset the Font/Font Size parameters and I was trying to not have to put that code (.style) into the source.
go to tooltip properties, click on the (small) star, which is placed at the right of the text field. Then select from the popup menu, the option switch to multilines mode.