I have a 'Attach image' field in that i want add multiple images but i can't select it

I have a ‘Attach image’ field in that i want add multiple images but i can’t select it

Use a Child Table for Multiple Attachments

Create a new Doctype for the child table

Field
Image : Attach Image
Add a field of type Table in your main Doctype and link it to the new child Doctype