Hi,
Truly, I do not understand your question clearly. Lets me answer 2 concerns you mentioned in above question:
<blockquote>I want to make it “smaller/shorter”</blockquote>
The size of slideshow (Bootstrap carousel) on front-page will base on the grid size defined in the article backend. You can make the slide smaller by changing the Grid Type to 1×1.
<blockquote>tthat is remove the two last “lines”? </blockquote>
They are 2 lines of slide description section, you can remove them by creating a custom.css file at templates/ja_fixel/css/ path and put below codes into:
.carousel-caption {
display: none;
}
If I’m wrong, please attach some screenshots of how you want to achieve, it’s better to give you suggestion.