Desktop HMIEditor libraries are stored under MapStorage in the X2View software folder, including bitmap, vector and GIF libraries. Add the required folders or files using the existing structure, then reopen the editor to load them. Keep a backup of the original library and use English letters or numbers in image filenames.
The browser-editor manual describes transferring custom-library images to the gateway or touchscreen with FlashHelper. Follow the instructions for that tool and software version. Editing a desktop library folder is not the same procedure as importing images into the device browser editor.