Here’s a helpful article if you get stumped configuring scalable elements with new Sketch 44+ resizing as it contrasts to past versions.

“The group resizing features of yesterday first appeared in Sketch 39 and gave us 4 modes in which a layer could behave within a group or symbol: stretch, pin to corner, resize object, and float in place…

The (v 44) UI and nomenclature for making these decisions has changed entirely, giving us much more control. Let’s take a look at how each of the legacy resizing modes translates in this update…”