The shortcut to run the last plugin in Figma is
⌥ ⌘ + P.
You can also set up a custom shortcut in MacOS’s Shortcuts panel based on the plugin name. I didn’t do this yet in the screenshot below, but you if you use the exact menu item name, it should work.
What I did however was set up shortcuts for Pack Horizontal and Pack Vertical. I use these commands all the time to quickly build designs.
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