Click 
to open an image file.
Edit the image file.
Add Files or Foldes: Drag files or folders from Windows Explorer
to PowerISO. You can also
use clipboard or 
to add files or folders.
Delete Files or Folders: Select the folders or files you want to delete, then click
.
Rename: Click the folder or file you want to rename, click it again
(not double click), then type the new name.
Create New Folder: Choose menu item {"Action --> "New
Folder"}, then type the new folder name.
Change Label: Choose menu item {"Action" --> "Change
Label"}, then type the new label name.
Click 
to save the file, or use menu item {"File" --> "Save
As"} to save to a different file name.