When i am trying to upload more than images at a time in the form view of my model,i am unable to upload multiple images at a time.

Is there any attribute used that i can able to upload multiple images at a time ?

please suggest

in my .py file:

image = fields.Binary('Upload Image')

and in my .xml file :

<field name="image" string='Upload image' widget="image" required='1' options="{'preview_image': 'image_small', 'size': [150, 150]}"/>​