To save a prompt as a model, select the prompt from the sidebar, then click the Settings icon in the top-right of the Reins window. In the resulting pop-up, click "Save as a new model," which will ...
You see, back in ye olde times you used to be able to just save your data using the in-game 'Save' button, and then load it on another device. But then 2.2 came out. And there's a lot more traffic on ...