Hi @Darkforce_the_ilogic_guy. If it was just simple, static text within the TextBox, then you could most likely do that spacing thing without much trouble. But most of the time the FormattedText behind TitleBlock TextBoxes contain XML tags and complex data link information for creating a live link to a property, not just a simple property value. Although there are a few ways to format some information within FormattedText, the main formatting capabilities are things like Font, FontSize, Bold, Italic, & Underline. (Link1) One alternative to creating a custom iProperty might be to point the iProperty link within the TextBox to the DrawingDocument, instead of the Model document, then once the value from the model is copied to the drawing to populate the drawing's iProperty, you could modify the value of the drawing's iProperty to suit your needs. This will be using the standard properties, and leave the model property alone, as requested, but still allow a modified drawing version for use in the drawing's title block. You would just need a fairly simple iLogic rule to use on the drawing side (could be an external rule), and the rule could be set to run on an event trigger, to modify the drawing's iProperty, if needed.
Wesley Crihfield

(Not an Autodesk Employee)