How to copy one file from USB drive to a folder in Raspberry Pi

How to copy one file from USB drive to a folder in Raspberry Pi 4

I  will use "aidexinkong.jpeg" as a file and the folder "img" as a target.

1. Load the file to a USB drive from a PC, insert the drve to a USB socket in Raspberry Pi 4
2. Turn on Raspberry Pi 4
3. Click OK on "Open in File Manager" with "Removable medium is inserted"

4. You get file names listed in /media/pi/USB DISK
5. Click on the file you want to copy, type control c
6. Click yellow folder on top left corner near the globe, you will get /home/pi
7. Right click on rpi-rgb-led-matrixyou wll get: click on open, you will get:
8. Right click on img folder: 
9. You will get:10. Click on open:
11. You will get the following files in the folder, then type control  v, your file from USB drive will be copied to this folder
12.  (Alternatively, if you haven't type control c in "USB DISK" folder, go back to the USB DISK folder, click on the file you would like to copy, type control c; then goto img folder, type control v, the file will be copied to img folder)
13. (Alternatively, you could click on and hold the file in USB DISK folder, drag to the img folder and release your mouse, the file will be copied to img folder)