PaperWM/examples/winprops.js

const Extension = imports.misc.extensionUtils.getCurrentExtension();
const defwinprop = Extension.imports.tiling.defwinprop

defwinprop({
    wm_class: "copyq",
    scratch_layer: true
});

defwinprop({
    wm_class: "Riot",
    oneshot: true, // Allow reattaching
    scratch_layer: true
});