Howdy, @Maratopia_Digital!
Thanks for writing in! Believe it or not, that ellipsis option has always been present on the Headline Element, it was just present in slightly different manner on previous releases (as a checkbox). It’s definitely a very helpful option to explore! The reason it’s more “prominent” now comes from the fact that with this release being centered around responsive styling, all controls needed to have their own unique side-label to help display the status of responsively changed values. This means that a lot of old controls which were previously side-by-side within a row were broken out into their own lines. One great thing with this is it allowed us to make the labeling more clear for many features, and it also helps to highlight things in a more equitable manner.
As for choosing the number of lines to ellipse at, I think we might be nearing a state where that could be possible. That particular styling feature is known as a line-clamp in CSS, and is still not universally supported:
https://caniuse.com/?search=line-clamp
You can see that IE11 isn’t supporting it at all, but most other browsers support it with a vendor prefix. We’re kind of at a place in general with IE11 support where we have begun to add in features that may not totally work across all browsers universally (such as the “Specialty” controls in the Effects Module, which have a description on their label mentioning this), so I will think on this some more.
As for the Text Element, we have a different feature on that Element that is more suited to it’s purposes. While the Headline Element is intended to be used for “single-line” text (i.e. short, text-exclusive content), the Text Element is intended for longform content, and might technically include other forms of media such as images, videos, et cetera, depending on how you’re using it. Because of this, the Text Element has a different feature called “Text Columns,” which you can see enabled in this screenshot:
This feature is actually one of the more powerful options in the entire builder that I don’t think gets enough credit. It uses the CSS3 multiple column layout spec, which allows users to do some really cool things. Very simply, you can do something like the image above where you setup a rule saying: “I’d like at most 3 columns, and for those columns to never be smaller than 250px wide if possible, and space them out by 50px.” The spec will take this info, and responsively break your content down for you as those rules are met, so at a certain point things will automatically break to 2 columns when it absolutely has to, and ultimately 1 column.
We actually used this feature for the excerpt text on our Postmodern Pixels archive layout in Design Cloud. Take note of how the text starts as 2 columns, then breaks to 1 at some point, and then when the layout shifts on mobile it goes back up to 2 columns because it has more space again, and then ultimately back down to 1. When leveraging these features properly, it allows users to achieve all sorts of amazing auto-responsive layouts that would otherwise be quite cumbersome to manage manually.
Anyway, hopefully that all helps give a little more context. Thanks again for writing in and do let me know if you have any further questions!