Admin editor you can find in admin/view/javascript/d_visualize/
it's fully nuxt.js app - with some modifications of axios module
- start to module is from package.json - it have npm run scripts
- dev - run develop enviroment start express server with hot reload and etc - very nessessary is .env file where two var need to be set (DEV=true;TOKEN=your_store_token)
- build - is used for generation static assets for module production .env is also nessesary dev=false
- start - is not used for me
- generate - also not apply feature
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With Shopunity module
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With Opencart Extension Installer
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By uploading files with FTP