A way to add a title to all Frames and apply common export settings

figma-append-title-and-set-export-settings.ts

// NOTE: This uses the Scripter API so won't work as a normal Figma plugin
// Download here: https://www.figma.com/community/plugin/757836922707087381/Scripter

const layers = figma.currentPage.findAll();
const frames = layers.filter(isFrame);

async function renameFrames() {
    let items = frames;
    if (items.length > 0) {
        for (const node of items) {
            if (node.type === "FRAME") {
                node.name = ((node.name).substr(0,2) != 'Slide/') ? node.name = "Slide" + "/" + node.name : node.name;
            }
        }
    }
}
renameFrames();

figma.currentPage.selection = layers.filter((n) => n.name.startsWith("Slide/"));
const { selection } = figma.currentPage;

function hasValidSelection(nodes) {
  return !(!nodes || nodes.length === 0);
}

const settings = [
  { format: "PNG", suffix: "@1x", constraint: { type: "SCALE", value: 1 } },
  { format: "PNG", suffix: "@2x", constraint: { type: "SCALE", value: 2 } },
  { format: "PNG", suffix: "@3x", constraint: { type: "SCALE", value: 3 } },
  { format: "SVG", suffix: "" },
];

async function main(nodes): Promise<string> {
  if (!hasValidSelection(nodes)) return Promise.resolve("No valid selection");

  for (let node of nodes) {
    node.exportSettings = settings;
  }

  return Promise.resolve("Done!");
}

main(selection).then((res) => figma.closePlugin(res));