I’m waiting for the same critical feature as well. Seems right now there’s no option available to do so.
My only workaround to avoid building the slider from scratch every time I have to move around a slide or add one (not as last one) is to edit the code itself generated from the block: I switch the code nested in the wp-block-getwid-media-text-slider__content divs.
That’s still a lot of work for such a trivial action. I hope they’l had more control for rearranging slides (at least in the tree blocks view) or I’ll have to search for another plugin to cover this feature and it’s a pity because everything else in this block is just what I need.
