I have a multi-flow piece which I’m required to have a boxed flow title (i.e. “1. Flow Title”). I have enabled the “Border” option for the Flow Title paragraph style in the menu option “Library” > “Paragraph Styles…”, but it doesn’t show a box around the flow title.
Also, I tried to create a box around the default Flow Heading template in Engraving mode, but as I don’t have a fixed with for all the four flows, that won’t work out either.
There’s no really good way to do this at the moment, I’m afraid: you can’t currently create a border around text in a frame in a way that dynamically grows to fit the size of the text rather than encompassing the whole frame. This is something we intend to work on in future.
If you do this, you are probably best off creating a Custom Flow Template for each SVG in the Engrave Mode Page Template section so that you do not have to recreate a page override from scratch should pagination change where each flow starts. Applying a new Flow Template is easier than deleting and recreating a page override.
(This may sound confusing, but learning to use custom page and flow templates for special formatting needs can save a lot of work in the long run.)